CSS Sponsors Placement Existing Layout Questions

I have an existing CSS layout and I want to place a < div > for a sponsors section, I have marked in green where I want this div. Does anyone have any examples of what I need to do?
URL for the site: http://cpanel24.proisp.no/~honnizrr/

hey, yeah in your #rightmain create a footer area which will be for your sponsored links. should be simple enough.