Style Works with Firefox but not Internet Explorer.

[forumsoup.com]

(Both my homepage and my forums are working with firefox and dont work with Internet Explorer).

Some of my users are telling me that my forums are a little disoriented. Some say some pics arent showing up, while the header is unleveled, and then google ads disappear and then reapear and so on. My site is http://www.forumsoup.com For some reason I dont see anything wrong when I visit the site on my own computer. But when I use another computer, I see some of the errors the users are talking about. :ermm:


Ah, more updates: When I use firefox, it seems as though everything is leveled and looks fine, but when internet explorer is used images are Xed out, the headers way too low, and some of the head forums title are off the page. Is there something to fix this? Why is it just when using internet explorer the site goes wack but when using firefox everything is fine?