MYSPACE Help: Different in different browsers:(

Hey everyone,
I modified a MYSPACE page with some code and what I found is that when I look at it in IE it was ok with a few small problems, but the FIREFOX version was all screwed up. I want everything to be contained within the borders of the site, instead things are floating around on the outside and I don’t know why:( User comments are floating outside the borders, if you scroll to the bottom you will see the "Add Comment button floating way out of the border and the user information on the top left under the header is way off to the side.

**The link is below: **


If someone code possibly look at the code, or if you need me to send you code and tell me where I went wrong and how I can fix this, I would really appreciate it.