Notice how it says "17 items remaining". Those are all of the other pictures. Because body_back.gif won't load, those other 17 images are stuck there.
And with the forums, it's 58 images being left behind. It's probably for all the little buttons (insert image, insert link, etc.) for the posting screen.
I'm now left pictureless.
EDIT: (took a while to find the edit button) I can't even see the pics in this post because of this bug.