Well, the upgrade didn't go quite as smoothly as we had planned. We upgraded today from 3.6 to the 3.8 version of vBulletin. We were going to go to 4.0 but had to wait until we install some new additional software.
4.0 might wait until early January.
If you are experiencing any unusual errors, feel free to post them here and we'll look into it.
Happy Holidays.
Scott