1) First off, PLEASE don't reply to the message -- that just makes it harder for the moderators to hide/delete the whole thread!! Instead....
2) Go to "Post Options"
3) Under the "pull-down" there should be three choices. Just click "Report Post."
4) The window below should appear:
5) Fill in the blank form, which will then be sent to ALL the forum moderators. Just explain theproblem briefly, like "It's another sales spammer! Which wouldn't bequite so bad if they were selling KINKY stuff!"
6) The moderators will handle the rest!