just two updates:
rb2midi - Using Rock Band 2 drum controller to trigger MIDI
RB2 drum kits to actual drum kit guide
ROCK BAND 2 FOR THE Wii - STEP BY STEP SET UP - Rock Band Forums
step by step guide on hooking up the RB2 drums including how to sync them which is pretty easy. hehe
Ok, now I actually do have a problem. My RB2 drums don't work with my RB2 game. So, like I said from what I have read here, I only need to downgrade to Cios 37 and it should work. Am I correct? A simple yes or no will suffice and I will get started trying to get the RB2 drums to work properly but I don't want to do anything yet just in case I mess something up inadvertently.