Congratulations with the successful upgrade. I noticed at least one already fixed issue: users homepage links in the "mini-user profiles" in forum view is now working properly taking you to the homepages and no longer falsely appending the APUG URL to it.
Two quick observations though:
- That homepage link bails you out of APUG now. Not a real issue, but you may wish to set the links to open in a "blank" page / new TAB.
- Some of the forum page links above threads with multiple pages, no longer use the APUG color sheme, but are now the probably default vBulletin blue color. See the blue arrows for "last page" etc.