Another Background?

[Fabilous]

Hello community.
I would like to have a different background for my board. Vbulletin 4.1.x
I have tried to paste the script code snippets in forum home / forum display template, and also in forumhome-/forumdisplay.css.
But nothing happened.
I tried it with x in the templates.
(i tried in head and body tag.

  <STYLE TYPE="text/css">
<- BODY {background-image: url (http://picurl.jpg);
         background-attachment: fixed}
->
</ STYLE>

and

{background-image: url (http://picurl.jpg} (and without the {})

in the *. css files.
Nothing happened.
And where can I make the forum a little wider?