These 5 lines of code are all that needs to be inserted at the front of the Description section on one of your broken (no background) active listings using the eBay Revise listing editor. Make sure the editor is in HTML mode to do the paste.
background: url("http://i237.photobucket.com/albums/ff42/SamHiland1/edit.jpg") fixed;
You can copy and paste to eBay from the practiceboard here.
If it works a PREVIEW should show the background correctly. That link in the code is to your daughter's picture background at photobucket, like the one that's working at the beginning of this thread in the Forum.