Don,
Been thinking about your spam problem on the P31 forum.
There appears to be so little actual traffic on the P31 section, that a simple (albeit possibly temporary) solution would be to delete this section completely, thereby preventing the spam, and merging the P31 into the P325/P335 sections. This will prevent the spammers for a while, thus giving you time to think up a more perminent solution for the Forum as whole.
Hope this helps?
Stuart
Stuart Tucker