Don't know what happened but most of the links in the V6 FAQ TOC don't work anymore.
But if you use it now, it will get you to the post on the old forum. You then can find the thread by deleting all of the stuff beginning with the first .msg to the end of the link you want to repair to find the thread on the new forum. (The search engine on the new forum leaves much to be desired!) Once having found the post in the thread in the old forum using @Squid's method, you can then use the date on that individual post to find that post in the thread on the new new forum. (I have