The url is http://www.basind.com/New%20Steelguard/. It works fine in Firefox, but not in IE.

So if anyone can help me, please do.

The CSS File
You can just view the source for the html

Thanks in Advance

It does not work in IE 6 (or below) because IE is incapable of a hover on anything but a link. You have li:hover - not a link and not gonna work w/o help. Add the whatever:hover behavior and it will work:
http://www.xs4all.nl/~peterned/csshover.html