Background Image

[hbalagh1]

I have my background image centered and everything but i don't want it to repeat horizontly, only verticle (if that makes since)

here is the image im using you can hardly see it but i need to use it to follow the look of the blog i have http://www.fruckyou.com/forum/images/background.jpg

you can see my forum here

http://www.fruckyou.com/forum/ as you can see its repeating the background image as its alot wider then the image above

anyone know what do to to have it centered and not repeat (horizontly)