Drop me an email and we'll get you going.
I have the manual, so I can supply that right now. AAMOF, I'd review the manual and check your switches. Specifically, they specify the control board in the remote switches that this upgrade is compatible with. I suspect most of the older switches have this board, but might as well check before you buy something you can't use. Below is a shot from that linked manual, the upgrade is compatible with the TRC3 board.