attached files deleted every week?

[Gutspiller]

Is there a way to make a second attachment field that was for pictures that were temporary? I have a picture forum that I would want those pics to stay there, but if people are just uploading a screenshot in another forum to show somebody what's going wrong with their system or whatever the case maybe, would it be possible to have those ones delete every week or month?

I don't know if this would be a full blown hack or not. Forgive me if this shoulda been posted in the hack forum.

Thanks for any help you can provide.