Motech, the module situation is pretty much the same as IR. You will find a Denon Receiver but its unlikely you will find a brand new model in the database. So for example if you are installing model XYX-2300. You might find XYZ-2200. In most cases this works just fine. In others you have to get out the protocol and build your own.

My advice would be to get the software, see whats already in there and attempt to design your system around that. At least until your more familiar with things.