I have a TBC I, II, III, and a few IV's. I believe the software for the III and IV will control a II, but of course some of the more advanced functions that the card can't handle won't work. I have the software for the III and IV, which I can provide if you can't find it elsewhere. Also note that you will need a cable to go from the modular jack on the back of the card to the serial port (if you don't use the internal header), which I can provide the pinout for if needed. Let me know if you need more info. I have the manuals too.
