Sounds to me you may need some database diving.
It appears that something must have corrupted some files at some point in time in the past.
Or at least a database table such as forums.

Bottom line is we don't know the specifics.
If the image displays on the board then the file exists somewhere.
It would be helpful for a example such as url to board with a indication to what image you are trying to delete.
If it is just in the control panel then someone would probably need access to the control panel, database and ftp access.

Last edited by Ruben; 01/15/2012 4:06 PM.

Blue Man Group
There is no such thing as stupid questions. Just stupid answers