shoesthatloveyou - the background property should be in body, and I think your photoshopped image will be far easier for you at this point. Here's an example. Change the specifics to suit your needs:
body {
background-color: #111111;
background-image: url("filename.jpg");
background-repeat: no-repeat;
background-attachment: fixed;
background-position: right bottom;
}
That can all be expressed on one line, but I find it easier, when tinkering, to leave it that way.
For further refinements, the resources in the forum sticky are excellent.
http://en.forums.wordpress.com/topic/learning-about-css?replies=28