Level-1 menu being covered up by shopping cart content
I have developed an ecommerce site that uses multiple webassist extensions including css menu writer and ecart. Everything works great minus the fact that on some pages that were built using the eCart wizard, like the shopping cart display page, level-1 of the css menu is hidden behind the shopping cart display content area. I have tried encapsulating the content in a div and the menu as well and setting the z-indexes accordingly but no dice.
This problem only occurs in IE. I am running the latest version of IE 8 and my client's primary customers use IE 6 and this occurs in both versions.
Below is a link to the shopping cart page.
Please advise ASAP.