and your sidebar is where?
The easy thing would be just to do a width="76,5%" on the container ( assuming your sidebar isn’t inside that one) and then just making the sidebars width into width="23%"
something along those lines
and then just keep trying with the widths until you like how it looks. A tip is to use firebug in firefox and try your css changes. I.e you type in the code and the page changes in your browser
