Mini background in ATS store not working?

Ok, i may have done it all wrong. But here goes.

I went to the member upload space and uploaded: files.abovetopsecret.com...

Then i bought the mini background thing and put in: ats65201_fractalbackground.gif

But the url previous to that goes like: abovetopsecret.com/forum/uploads/

That doesn't match.

files.abovetopsecret.com... is the uploaded picture

abovetopsecret.com... is where it looks and i cannot put in a differend URL.

So am i being stupid here or has something changed since the last time i put in a mini-background picture it worked.

Never mind, it popped up

*shame*