First, this is what you gave me which had the Forums in originally no?

Code:

RewriteRule /Forums/(.*)/([0-9]+)\.htm /Forums/showthread.php?t=$2

Second...thanks

and third, that was the second part of the rule that moved all forum links to forum www. links. We were originally straight url but when we adapted Google Pagespeed service, it had to be www.

Oh and yes...alot to learn but, as you probably know, true expertise is an impossible thing to find. I am by no means cheap but spent a month with the forums down while several people told me they couldnt be fixed.