[Forrest]

The "quick reply" option at the bottom of the threads does not seem to function at all in SP1 either.

vBulletin has a pile of issues like the ones mention above. I used to be a member of a forum that used vBulletin, but its lack of support for Mac browsers made it enough for me not to use it.

As I mention in the email list, I prefer Simple Machines to vBulletin. It's from the creators of YaBB (SE, CGI, PHP...) but they started over and built a forum using more modern techniques. They tout W3 standards compliance.