Here is the code for placing the Myspace background image in the bottom center of the browser window.

<style type=”text/css”>

body {
background-color: FFFFF;
background-image:url(http://URL TO IMAGE);
background-position: bottom;
background-repeat: no-repeat;
}
</style>

One thing to note with bottom positioned images is if the browser window is small, or if you have a lot of content and the Myspace layout tables stretch down a long way, the image will not be initially visible.