Help with Internet Explorer!

Hey,
I still can’t seem to make my images show up in IE. I used a basic theme from a friend to build my website on which has two stylesheets: styles.css and iehacks.css. Both should be the same. However, it’s still not working in IE and anything I do seems to not do anything at all. Could anyone look at my code and help me out? The site is http://www.joaniesimon.com.
Thanks!