If it helps anyone else, I did call TS Performance today. The operator there transferred me to someone to answer my questions, who actually wasn't sure and had to go ask someone else. But they did (mostly) confirm, that the same MP-8 power module, part number 2110104, "should" work for the 2008 VT365 the same as the 2003-2007, as the engine "likely hadn't changed". He did not say if it applied to later years with the VT365, 2009+. I don't know when the last year was, that the VT365 was used, but I thought it was just 2009.
FWIW, the lowest price I found out there was Alligator Performance, they had it for $440, (VT365 is more expensive than the other models) and free shipping. Then I jumped on an expiring deal they had for an additional 10% off, so I got it for under $400, shipped. Good customer service from Alligator so far.
http://www.alligatorperformance.com/pow ... -3534.html