Hey Mark,
I don’t know much about that specific theme, but to change the background of a theme you would typically open the stylesheet for the theme (style.css) and find the definition for the background you want to change. This is typically going to be defined near the top of the style sheet in a definition named, body, content or wrapper or something like that.
If you don’t know the class or id name of the background you are looking to change you can just scan the css and look for any lines that look like this:
background:#ff0000 . . .
or
background-color:#ff0000;
the hexidecimal color codes above are just examples and will probably be different in your theme’s style. If your not sure which one to change you can change each instance of “background” or “background-color” one by one to something like:
background:yellow; or background-color:yellow;
until you find the definition that changes what you are looking for.
If you post a link to your site I can be much more specific.
Hope that helps get you started.
