Hi,

My Website have some difficulties with the way Internet Explorer 5.5 and 6 displays pages. It works well in Internet Explorer 7, Opera 8 and newer, Safari 2, Firefox 1 and newer, Flock, and others.

IE6 capture
IE5.5 capture

How to make this design work with the older versions of IE?

IE's rendering of pages doesn't make sense to ANYONE - except maybe MS !!
See the looooonnnngg list of bugs in IE 6 and below here:
http://www.positioniseverything.net/explorer.html

You're getting float drop on your middle column. This usually occurs when the widths of the elements + padding + margins exceed the width of the container (or page) that their in. In your case, the middle column is stuck down below the right column.