You have to be careful, because when you use absolute positioning, Firefox and IE render differently, so you will have to use an IE6 hack to make it work.
In fact, there are three pieces of absolutely positioned content on this page. The toolbar at the top (the colors load last, so you have to wait a minute.) The search bar to the left and the links area to the right of the main content table.
The page was designed to have almost all of the content on a single page - at least with regard to the major search engines by category.