We had our upgraded too. We recieved the lastest version of the Millwite CD upon return of the control. We didn't get a manual with it, but it's very easy to use...you really don't need one.
The upgrade overall works good.
The only complaints I would have is the softkeys don't work in many of the menus, you always have to use the keyboard.
The editior doesn't fit in the display window, the last 3 or 4 lines don't show.
Yes, Centroid is somewhat hard to deal with...I think they have a big turnover in tech people. You never get the same person twice.
Call them back, tell them to send you the CD. You paid for the package.