2 column liquid layout that works in IE 7

Hi all,

I've been trying to get a 2 column liquid layout working based on this:

http://www.alistapart.com/articles/holygrail/

But for 2 columns. I thought I had it but IE7 broke it.

I'm don't know all the finer details of css and sometimes just spend time guessing and F5!!

Could anyone advise on how I can amend this 3 column layout to that of 2 to work across all browsers? left column is fixed width and right column is the variable content column.

Anyone who does this in their sleep, would love to hear from you :P!