Hey I had the reversal and j pouch december 2012 as well. I have tried working out also, cardio is not the greatest because it makes me feel like going more often but weights have been great to workout with and getting results fast.
For drinking, I have been drinking with the pouch more than I'd like to admit but I have been sticking to some rules that have worked great. Not drinking more than 1 beer because beer makes stool liquid, no soft drinks like coke because that makes stool more liquid, no hard shots straight up but sweet spirits with cranberry or oj is the key to drinking socially without issues, keep hydrated but not too hydrated :P, and start drinking 2 hours after eating or after a good bowel movement whichever comes first and then eat something good before bed. This has worked well for me but not sure if its for everybody. Listen to your body and see what works!