I wonder if anyone can help me. I have a web page on the internet. It was set up for me over 10 years ago but I am unable to contact the person who set it up for me and I want to change the photos and some of the text. I have some knowledge as to how I can do this but I do not know how to get into the source and do the work. Or maybe there is someone who can advise me on getting someone to do this for me. Any ideas?

First of all, where is it? Is it on a hosting service that you pay for? Or a "free" site?

If you can see it, then your browser has downloaded the source, and you can edit it.