Shouldnt be that hard for someone who knows PHP.
-Just allow non-members to upload photos and vote.
-Add option in ADMIN to enable or disable this feature
-Include comments in code of where you changed so when there is update to script, I know where to change.
The script is already built. The script is:
[url removed, login to view]
I purchased a copy and can send you to modify.
I think $50 and shouldnt take more than 2-3 hour.