This is more of a rendering issue and better solved using CSS positioning. This article may or may not help

 

http://www.builderau.com.au/webdev/graphics/0,39024704,20283355,00.htm

They use as the example:

div#test {
    background-image:  url(/images/backgroundimage.JPG);
    background-repeat: no-repeat;
    height: 500px;
    width: 380px;
}
 
 div#testtext {
    position: relative;
    height: auto;
    width: auto;
    left: 25px;
    top: 200px;
}
 
<div id="test"><div id="testtext">Superimposed Text</div></div>

RC