Hey...
go to your
UserCP and click
customize profile in the menu on the left
then, put this in the "background image" blank:
albumid=30&pictureid=1401
That will give you a leopard pattern in the background.
If you want to create your own,
make an album with the album type:
Profile - Pictures used to modify your profile style and you can start uploading... then go back into
customize profile and click the button that looks like this

to the right of the "background image" blank.
I'm still working on making it simpler, so if you notice anything you would change point it out,
Thanks
