[southernlady]

Actually, it's very simple.

First, find a jpg/gif (png are too big) of a size big enough to not scroll for most monitors. Minimum of 1024x768 but 1280x1024 is better. Make sure that is loaded into the style's misc folder that you are planning on using.
Then go to your Syle Manager> All Style Options>Body (Customized in this Style)>Background and put in this code: url(images/your style/misc/name of graphic.jpg); background-repeat: repeat; background-attachment: fixed}
You can also use this code if you do not want the image to repeat:
url(images/your style/misc/name of graphic.jpg) no-repeat fixed

It works. I promise. I use it on mine. Liz