you can search for it at cgi-resources.com (a good place to check out the competition)
or go directly to
http://www.worldwidemart.com/scripts/wwwboard.shtml here is the working demo
http://www.worldwidemart.com/scripts/demos/wwwboard/wwwboard.html I am not sure if they fixed all the old security problems. Also, it is not very comfortable, but it has a few advantages, the main one is server friendliness: static html!!
It would be worth considering if the archive board were to run like Matt's board. My threads bogs down an entire deicated server, due to huge database activity.
But static aside, I was talking about the simple uncluttered looks, and FAST LOADING (because no tables!)