IE6 and IE7 CSS help

working on a site for a client (demo page here, still under construction: http://www.wmaxwell.com/newsite.html ). The 4 tabs line up fine in FF 3.6, IE8 and Chrome, but when I checked it out (using Virtual PC) with IE6 and IE7, the tabs are all crooked. C开发者_高级运维an anyone using IE6 or IE7 confirm this for me, and can anyone give me some help with the css? Obviously it's a bug in their renderer, but I don't know how to fix it (I would supply a custom stylesheet for those browsers using conditional comments).

Thanks in advance!

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Add this to your CSS: li { display:inline; }

Also, you can use IETester to check out different browsers without using a Virtual Machine.