[RyanCesiel]

I would recommend first setting up a IEFix.css or something and add

<!--[if IE]><style type="text/css">LINK TO IEFIX.CSS STYLESHEET</style><![endif]-->

Then add your two main IDs in that file, #main-nav and #content. All you need is something like

#main-nav {
          width: WIDTH;
}

#content {
          width: WIDTH;
}

From there I would play with the widths, and see if you can get something to work.