http://www.dirtalliance.com/store/index_.php

The 3 images at the bottom aren't aligned horizontally in ie6, but they are in pretty much every other browser I've tested. I can't figure out the problem. Does anyone have any ideas?

It's a box model problem. The doctype you use puts IE6 in Quirks Mode and it uses the broken box model of previous versions. The result is there isn't enough space to put the three images in a row.

http://css-discuss.incutio.com/?page=BoxModel
http://hsivonen.iki.fi/doctype/

you, my friend, are freakin awesome. Thank you soooooo much!