[Solved] Position interior divs in extreme left and extreme right of header div

I used the layout tool as advised an got this, thanks,
however, i've got 2 questions about

http://www.housetracker.org

no1, can I get my Comission junction div(a div within header div) to fix to the right corner of the header div ?

no2, the layout breaks down in 800x600, i am reducing the widths of all the elements, asp.net controls to see if this is the problem, not working so far,c old there be another problem apart from widths

cheers