Hi,
It's really pretty easy. Based on my ABZ experiences, you get off the MAN a/c and there should be a desk for connections just as you get out of the jet bridge.
There is an underground people mover that connects the satellites (B &C) to the. Main building. The train is well signposted within the terminal and is pretty much impossible to miss. You won't need to worry about going outside and getting busses or anything, it's really a stress free and simple connecting experience.
