You need to go to your template css folder (base) and look at the common.css folder and place code there at the top where it shows background.. I have done it with my site, works great.
Here is a example
.@import url(../../base/css/common.css);
body {
background-color:transparent; <----------I made transparent
background-image:url(../images/bk-Spider_Web_Website_Background_BlkRed-1.gif); <-----I had to add this line to make background show up.
color:#CCCCCC;
}
Spider_Web_Website_Background_BlkRed is the background I have used on my site. Make sure you make the background transparent besides adding your background image, so that it does not interfere with your background. If you want to see what I did you can message me and I will send my site url, but wont post it on here anymore.
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