Divs disappearing in IE

[AvalonMel]

The site. (http://198.165.33.249/ConnectSuite/2007/)

This site was done using all CS and is showing correctly in Firefox. When I test it in IE 6.0 All of the top navigation and images disappear. I have no idea why. I've tried changing the order of my divs on the page and double checked all my z-indices. Any help would be appreciated!

[chrishirst]

Your CSS is far too complex for what you are doing with your layout.

First you should get rid of the absolute positioning and the negative margins and learn how use the normal document flow and floats to position the header items.
Putting empty wrapper containers around images is not necessary and can give problems, either apply the class directly to the image or set the image as background to the sized container.
Avoid using the ../ syntax for referencing images in the style sheet, reference everything root relative rather than document relative.