IE kicks my butt - a div positioning problem

I posted this in the "Site Structure" forum, but didn't get a solution. So I'm hoping someone here can help me out.

In Firefox the page renders pretty much how I want it to (with a few minor bugs). But in IE 6, the divs in the content area get all messed up. I've tried various hacks, but nothing seems to work.

Any help would be much appreciated!

Here are the pertinent links:
http://www.wwta.org/test/index2.asp
http://www.wwta.org/test/styles3.css
http://www.wwta.org/test/front2.css