I do not know how to fix this "looks-like-easy" css issue.



http://www.avenueaparis.com/?page_id=39
HOW TO have the right sidebar intended in the 960 px layout?
Post should be 700 px
Sidebar: 260px
The layout is funky as the right sidebar sticks to the right side of the screen.
website design concept:
960px width website with 100% width footer.
Config of ATAH. + CSS:
LAYOUT: 100% width
> I did that to have a full footer background 100% width
POST:
width : 700px;
RIGHT SIDBAR; 250 px
I tried to fix the width of the CENTER column > nothing happened

I tried to fix the width of the MIDDLE table > nothing happened
I tried position:absolute of the sidebar > problems of rendering on different screen resolutions
In addition, the css should be compatible with IE...
I would like to change the php core files but I rather prefer to adjust css only.
Is there a solution for my problem? Am I the only one as this layout is pretty standard among the web...