my forum only occupies half the page

Posted by John Couper on Jul 23, 2008; 6:18pm
URL: https://support.nabble.com/my-forum-only-occupies-half-the-page-tp578947.html

Hi my forum only occupies half of the page. How can I make it occupy all the availible space.
here is the link.    http://jmcphotographies.ch/forum.html
Thankyou for the help.