suggestion: allow user to specific their own image through url
and allow them to use their own image in their local machine
since i suppose you save their "preferece" in their local machine, you may just change the url to either url or local dir
But that's kinda messed up though, I know there exist people with one license use the software on multiple domains
me on the other hand, respect IPB's policy and going to purchase an additional license to use on another domain, even though i have the software already
then I have to pay twice as much just to get an upgrade... really?