Remove Images

[iloco]

I have deleted a few members from my VBB forum and also from my photopost gallery who were inactive in the last year or so.

I noticed in my data folder there are still pictures some of the members I removed from vbb and also supposedly removed the pictures from photopost gallery still in the data folders(504 fro example).

Is there a command I can use to remove all pictures that no longer have a register member it is associated with in the photo gallery.
Is there an option in admin cpanel that I can do this from or in my mysql data base using a command to remove pictures whom no longer have a user associated with the pictures.

Hope this is not confusing to you when reading.