Div Overlay background, HELP PLEASE!!! Options

[Facade444]

Ok so I made a div background in photoshop.. all I need to know is
1:How do I set it as the background
2:how do I put the div boxed where they are on my background?

[duplicatex0x0x0]

To put in a background -

CODE

{div to control background}
.background {
background-color:ffffff; color:000000;
border:0px solid; border-color:silver;
width:XXXpx; height:XXXpx; overflow:auto;
position:absolute; z-index:1; left:0%; top:50%;
margin-left:-0px; margin-top:10px;
visibility:visible;}

{background DIV}
<div class="background" style="position: absolute; left:XX%; top:XX%; width:XXXpx; height:XXXpx; overflow: hidden;">
<img src="IMAGE_PATH">
</div>

Then for your second question, you just position the divs to the appropriate spot.