DHTML issues with IE

I am trying to produce a table dynamically when the user presses "add to
queue". It works great in Mozilla, but it is formatted incorrectly in IE.
What I meant by the checkbox was that it should be checked by default. IE
doesn't do this while mozilla does. Here's a link:

http://helios.acomp.usf.edu/~torr2/test/test.php

Specifically, the checkbox is not checked and the css classes don't seem to
be working. This only happens in IE and I can't figure it out.

Thanks For any help you can give,
Tom