Put together a skin similar to my old vbulletin forum, and with the help of Kier's redirect scripts and the vbseo ones my links from google are working perfectly.
So far - very pleased. 1.7m posts, took about 16hrs for the total import operation on a dedicated box but no real intervention needed to take place... flawless!
Glad to finally be running xenForo.
Great work Kier, Mike and the team (and the helpful members here too!)