This is a guide on how to set up your background!
First, Go to the Admin Control panel and go over to manage styles...
You can Use one of the sample styles, or create your own..
To get one off of here, get the Header/Footer code, and Copy + Paste that into the header or footer...
Then, go over to "Create" and name your style.. (don't do anything unless you want to make your own) Scroll all the way down and click "Create Style"
Now, Go to "Modify Style" scroll down, and Delete everything thats in the CSS.. Once that is done,
Paste all of the CSS stuff that you got from here, go back and your style Should appear!
Your Done!!!