Ok, I have added a background image by going to
Style manager>edit templates>css templates>vbulletin.css
I found the code for the background there and added an image tag to the css.
For an example please visit
http://www.teamotec.net
I am still looking for a solution to the view profile problem, and have also noticed that the same problem occurs on the add article, and post blog pages...
Help on that would be appreciated