K im a major noob

to the whole web design field, i learned how to code in html back in high school, LOOOOONG time ago well only 5 years ago but i wasnt good then and not now apparently. Lotta stuff changed since then. Basically though i have a huge problem that ive been trying to fix with very little knowledge. This is like trying to build a house with only the experience of living in one.
Heres my problem:
http://www.DaveTheJerk.com
Theres the site, big problem is that it displays PERFECTLY in Mozilla FireFox, but in IE its got a HUGE gap of space. IM ripping out the hairs on my head googling this problem looking for a quick fix and this is my last resort. I really hope someone can help me. Thanks in advance for your suggestions, help, flamming.
I dont even know if im posting in the right section if not please move my post admin/moderator.