Hello, if anyone could help me increase the size of the photos on my tumblr theme, I'd really appreciate it. The URL is: www.lalamarcia.tumblr.com

I've searched for the answer on different forums, however the code to my theme seems to look different than those I've seen examples of. Thanks in advance for any help!

And the HTML is:

<html>
<head>
<title>{Title}</title>
<link rel="shortcut icon" href="{Favicon}">
<link rel="alternate" type="application/rss+xml" href="{RSS}">
{block:Description}
<meta name="description" content="{MetaDescription}" />
{/block:Description}


<!--

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Y88b. 88888b.d88888 888 888 888
"Y888b. 888Y88888P888 888 d88P 888
"Y88b. 888 Y888P 888 8888888P" 888
"888 888 Y8P 888 888 888
Y88b d88P 888 " 888 888 888
"Y8888P" 888 888 888 88888888

Sublime Theme for Tumblr by SMPL Design
www.smpldesign.co.uk

-->


<!-- DEFAULT COLORS -->
<meta name="color:Background" content="#EEEEEE"/>
<meta name="color:Text" content="#000000"/>
<meta name="color:Link Underline" content="#EEEEEE"/>
<meta name="font:Body" content="Helvetica"/>
<meta name="text:Tag Line Font Size" content="70"/>
<meta name="text:Tag Line" content=""/>
<meta name="if:Fade Images On Hover" content="1"/>
<meta name="image:Header" content=""/>


<style type="text/css">
body {
text-align:left;
font-family:{font:Body};
font-size: 12px;
line-height:10px;
color:{color:text};
background-color:{color:Background};
}
a { text-decoration:none; border-bottom:1px solid {color:Link Underline}; padding:0 0 2px 0; color:{color:Text}; }
a img { border-bottom:1px solid #fff !important; padding:0; }
::-webkit-scrollbar-thumb:vertical { background-color:#000; height:100px;}
::-webkit-scrollbar-thumb:horizontal { background-color:#000; height:10px !important;}
::-webkit-scrollbar { height:10px; width:05px; background-color:{color:Background};
}
#wrapper {
background:#fff;
margin:auto;
width:900px;
}
#content {
padding:0 0px;
width:900px;
position:relative;
}
#header {
padding:50px 50px 0 50px;
background:#fff;
margin:0 0 40px 0;
font-size:0px;
text-align:left;
}
#header ul {
padding:25px 0;
border-bottom:1px solid {color:Link Underline};
border-top:1px solid {color:Link Underline};
}
#header ul h3 {
padding:0;
margin:0;
font-weight:bold;
font-size:{text:Tag Line Font Size}px;
line-height:70px;
letter-spacing:-2px;
font-family:Helvetica;
-webkit-text-stroke: 1px transparent;
}
#header .nav {
margin:-25px 0 40px 0;
}
#header .nav a {
margin:0 20px 0 0;
}
.post {
position:relative;
{block:PermalinkPage}
padding:0 25px 25px 25px;
width:800px;
{/block:PermalinkPage}
{block:IndexPage}
background:#fff;
float:left;
width:233.8px;
padding:25px;
{/block:IndexPage}
}
.post img {
{block:PermalinkPage}
width:800px;
{/block:PermalinkPage}
{block:IndexPage}
width:233.8px;
-moz-transition: 0.2s ease-in;
-webkit-transition: 0.2s ease-in;
-o-transition: 0.2s ease-in;
transition: 0.2s ease-in;
{/block:IndexPage}
}
{block:IfFadeImagesOnHover}{block:IndexPage}
.post img:hover {
opacity:0.4;
-moz-transition: 0.2s ease-in;
-webkit-transition: 0.2s ease-in;
-o-transition: 0.2s ease-in;
transition: 0.2s ease-in;
}
{/block:IndexPage}{/block:ifFadeImagesOnHover}
.player {
overflow:hidden;
background:#000;
width:233.8px;
}
.notestop {
margin:40px 0 0 0;
border-top:1px solid {color:Link Underline};
padding:40px 0 0 0;
}
#notes {
font-size:11px;
width:800px;
overflow:auto;
max-height:250px;
}
blockquote {
border-left:5px solid {color:Link Underline};
padding-left:15px;
margin-left:10px;
}
a.notecount {
border:none;
-moz-transition: 0.2s ease-in;
-webkit-transition: 0.2s ease-in;
-o-transition: 0.2s ease-in;
transition: 0.2s ease-in;
}
a.notecount:hover {
opacity:0.4;
-moz-transition: 0.2s ease-in;
-webkit-transition: 0.2s ease-in;
-o-transition: 0.2s ease-in;
transition: 0.2s ease-in;
}
.tags {
margin:5px 3px 0 0;
padding:3px 4px;
background:{color:Link Underline};
-webkit-border-radius: 7px;
-moz-border-radius: 7px;
border-radius: 7px;
color:#555;
text-decoration:none;
-moz-transition: 0.2s ease-in;
-webkit-transition: 0.2s ease-in;
-o-transition: 0.2s ease-in;
transition: 0.2s ease-in;
}
a.tags {
margin:0 3px 0 0;
padding:3px 4px;
background:{color:Link Underline};
-webkit-border-radius: 7px;
-moz-border-radius: 7px;
border-radius: 7px;
color:#555;
text-decoration:none;
-moz-transition: 0.2s ease-in;
-webkit-transition: 0.2s ease-in;
-o-transition: 0.2s ease-in;
transition: 0.2s ease-in;
}
a.tags:hover {
background:{color:Text};
color:#FFF;
-moz-transition: 0.2s ease-in;
-webkit-transition: 0.2s ease-in;
-o-transition: 0.2s ease-in;
transition: 0.2s ease-in;
}
h2 {
padding:0;
margin:0;
font-weight:bold;
font-size:18px;
line-height:25px;
text-align:left;
}
div.video embed,
div.post div.video object, .video iframe {
{block:IndexPage}
width:233.8px !important; height:200px !important;
{/block:IndexPage}
{block:PermalinkPage}
width:800px; height:500px;
{/block:PermalinkPage}
}
#pagination {
display:none;
}
#infscr-loading {
height:50px;
width:50px;
position: fixed;
background-color: transparent;
right:50px;
bottom: 20px;
}
ol.notes {
padding: 0px;
margin:0;
list-style-type: none;
}
ol.notes li.note {
opacity:0.5;
padding: 4px 0;
margin:0;
-moz-transition: 0.2s ease-in;
-webkit-transition: 0.2s ease-in;
-o-transition: 0.2s ease-in;
transition: 0.2s ease-in;
}
ol.notes li.note:hover {
opacity:1;
-moz-transition: 0.2s ease-in;
-webkit-transition: 0.2s ease-in;
-o-transition: 0.2s ease-in;
transition: 0.2s ease-in;
}
ol.notes li.note img.avatar {
display:none;
}
ol.notes li.note span.action {
font-weight:normal;
}
ol.notes li.note .answer_content {
font-weight: normal;
font-style:italic;
}
ol.notes li.note blockquote {
border-left:5px solid {color:Link Underline};
padding-left:15px;
margin-left:10px;
}
ol.notes li.note blockquote a {
text-decoration: none;
}
{CustomCSS}
</style>

<script type="text/javascript" src="http://static.tumblr.com/53unaru/kx3lgzker/jquery-1.3.2.min.js" charset="utf-8"></script>
<script type="text/javascript" src="http://static.tumblr.com/53unaru/4jtlgzkf8/easing.js"></script>
<script type="text/javascript" src="http://static.tumblr.com/53unaru/y8wlgzkbt/jquery.ui.totop.js"></script>

{block:IfEndlessScroll}
<script type="text/javascript" src="http://static.tumblr.com/q0etgkr/J5bl3lkz1/tumblrautopagernopage.js"></script>
{/block:IfEndlessScroll}

</head>

<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js"></script>
<script src="http://static.tumblr.com/53unaru/3nylrstyz/sublimemain.js"></script>


<body>

<div id="wrapper">

<ul id="pagination">
<li>{block:Pagination}{block:PreviousPage}<a href="{PreviousPage}">{/block:PreviousPage}{lang:PREV}{block:PreviousPage}</a>{/block:PreviousPage}{block:NextPage}<a href="{NextPage}" class="pagination_nextlink">{/block:NextPage}{lang:NEXT}{block:NextPage}</a>{/block:NextPage}
{/block:Pagination}</li></ul>

<div id="header">
<div class="nav"><b><a href="<a href="http://s15.photobucket.com/albums/a392/Mamamamarcia/?action=view&amp;current=COTH_Final.jpg" target="_blank"><img src="http://i15.photobucket.com/albums/a392/Mamamamarcia/COTH_Final.jpg" border="0" alt="Photobucket"></a> /></a><a style="border:none">/</a></b> <a href="/archive">Archive</a> <a href="{RSS}">Subscribe</a> <a href="/ask">Message</a> {block:Pages}<a href="{URL}">{Label}</a> {/block:Pages}</div>
{block:IfHeaderImage}<ul><img src="{image:Header}" style="max-width:800px"></ul>{/block:IfHeaderImage}
{block:IfTagLine}<ul><h3>{text:Tag Line}</h3></ul>{/block:IfTagLine}</div>

<div id="content">
{block:Posts}

{block:Text}
<div class="post">
{block:Title}<h2><a href="{Permalink}">{Title}</a></h2>{/block:Title}
<a href="{Permalink}" style="border:0">{Body}</a>
{block:PermalinkPage}{block:Date}<span class="tags" style="text-transform:uppercase;"><b>&hearts; {NoteCount}</b></span> {block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}{/block:Date}{/block:PermalinkPage}
{block:PostNotes}<div class="notestop"><div id="notes">{PostNotes}</div></div>{/block:PostNotes}
</div>
{/block:Text}

{block:Photo}
<div class="post">
{block:IndexPage}<a href="{Permalink}">{/block:IndexPage}
{block:PermalinkPage}{LinkOpenTag}{/block:PermalinkPage}
<img src="{block:IndexPage}{PhotoURL-500}{/block:IndexPage}{block:PermalinkPage}{PhotoURL-HighRes}{/block:PermalinkPage}" alt="{PhotoAlt}"/>
{block:IndexPage}</a>{/block:IndexPage}
{block:PermalinkPage}{LinkCloseTag}{/block:PermalinkPage}
{block:PermalinkPage}{block:Caption}{Caption}{/block:Caption}
{block:Date}<span class="tags"><b>&hearts; {NoteCount}</b></span> {block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}{/block:Date}{/block:PermalinkPage}
{block:PostNotes}<div class="notestop"><div id="notes">{PostNotes}</div></div>{/block:PostNotes}
</div>
{/block:Photo}

{block:Photoset}
<div class="post">
{Photoset-500}
{block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}
{block:PermalinkPage}{block:Date}<span class="tags" style="text-transform:uppercase;"><b>&hearts; {NoteCount}</b></span> {block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}{/block:Date}{/block:PermalinkPage}
{block:PostNotes}<div class="notestop"><div id="notes">{PostNotes}</div></div>{/block:PostNotes}
</div>
{/block:Photoset}

{block:Quote}
<div class="post">
<a href="{Permalink}" style="border:0"><b>"{Quote}"</b></a>
{block:Source}<p>— {Source}</p>{/block:Source}
{block:PermalinkPage}{block:Date}<span class="tags" style="text-transform:uppercase;"><b>&hearts; {NoteCount}</b></span> {block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}{/block:Date}{/block:PermalinkPage}
{block:PostNotes}<div class="notestop"><div id="notes">{PostNotes}</div></div>{/block:PostNotes}
</div>
{/block:Quote}

{block:Link}
<div class="post">
<h2><a href="{URL}">{Name}</a></h2>
<a href="{Permalink}" style="border:0">{block:Description}{Description}{/block:Description}</a>
{block:PermalinkPage}{block:Date}<span class="tags" style="text-transform:uppercase;"><b>&hearts; {NoteCount}</b></span> {block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}{/block:Date}{/block:PermalinkPage}
{block:PostNotes}<div class="notestop"><div id="notes">{PostNotes}</div></div>{/block:PostNotes}
</div>
{/block:Link}

{block:Chat}
<div class="post">
<a href="{Permalink}" style="border:0">{block:Title}<b><a href="{Permalink}">{Title}</a></b>{/block:Title}
{block:Lines}{block:Label}<b>{Label}</b> {Line}<br>{/block:Label}{/block:Lines}</a>
{block:PermalinkPage}{block:Date}<span class="tags" style="text-transform:uppercase;"><b>&hearts; {NoteCount}</b></span> {block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}{/block:Date}{/block:PermalinkPage}
{block:PostNotes}<div class="notestop"><div id="notes">{PostNotes}</div></div>{/block:PostNotes}
</div>
{/block:Chat}

{block:Audio}
<div class="post">
{block:AlbumArt}<a href="{Pemalink}" style="border:0"><img src="{AlbumArtURL}" style="width:233.8px"></a>{/block:AlbumArt}
<div class="player">{AudioPlayerBlack}</div>
{block:Caption}{Caption}{/block:Caption}
{block:PermalinkPage}{block:Date}<span class="tags" style="text-transform:uppercase;"><b>&hearts; {NoteCount}</b></span> {block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}{/block:Date}{/block:PermalinkPage}
{block:PostNotes}<div class="notestop"><div id="notes">{PostNotes}</div></div>{/block:PostNotes}
</div>
{/block:Audio}

{block:Answer}
<div class="post">
<a href="{Permalink}" style="border:0"><b>{Asker}: {Question}</b>
{Answer}</a>
{block:PermalinkPage}{block:Date}<span class="tags" style="text-transform:uppercase;"><b>&hearts; {NoteCount}</b></span> {block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}{/block:Date}{/block:PermalinkPage}
{block:PostNotes}<div class="notestop"><div id="notes">{PostNotes}</div></div>{/block:PostNotes}
</div>
{/block:answer}

{block:Video}
<div class="post">
<div class="video">
{Video-500}
</div>
{block:PermalinkPage}{block:Caption}{Caption}{/block:Caption}{/block:PermalinkPage}
<p align="right"><a href="{Permalink}" class="notecount"><small>&hearts; {NoteCount}</small></a></p>
{block:PermalinkPage}{block:Date}<span class="tags" style="text-transform:uppercase;"><b>&hearts; {NoteCount}</b></span> {block:Tags}<a href="{TagURL}" class="tags">{Tag}</a> {/block:Tags}{/block:Date}{/block:PermalinkPage}
{block:PostNotes}<div class="notestop"><div id="notes">{PostNotes}</div></div>{/block:PostNotes}
</div>
{/block:Video}


{/block:Posts}
</div>
</div>
</body>
</html>