moving background image Options

[strAngx]

i recently posted a div layout to my myspace, but i wanted to add a picture as a banner. when i used this code:

<div style="position:absolute; top:-100; left:0%; width:967px; height:-0px; margin-left:-300px;">
<table border="0" width="967" cellpadding="0" cellspacing="0">
<tr>
<td><img src="IMAGE URL" border="0" /></td>
</tr>
</table></div>

to add the banner, it wouldnt show up. so then i tried adding a background, and this is the code that the div generator gave me:

<style type="text/css">
.DivOverlayLayouts.com-div-generator{display:none}
body {
background:url('IMAGE URL HERE') no-repeat top center scroll;
background-color:414D4D}

but when i use that, the picture is too high up, it cuts into the myspace ad. so when i change it to "center center" in the code, it's too low. is there a code i can use to move it where i want?