Content disappears in IE Win

I develop in Safari and Firefox, so it’s no surprise to see problems in my designs when I view them for the first time in IE Win. What I didn’t expect is to see no content once-however. ([url=http://kadisdesign.com/CoreIM/]The website[/url]) I suspect that it is an IE floating problem, but I am not sure. I have a [url=http://kadisdesign.com/CoreIM/CoreIM-Win2K-IE6.jpg]screenshot of the problem[/url], and a [url=http://kadisdesign.com/CoreIM/CoreIM-Safari.jpg]screenshot of the way it should look[/url]. If anyone has any ideas on how to fix it, or any reference sites that might point me in the right direction, I’d be grateful.
Thank you in advance,
Alex

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