Sorry it took so long getting b ack, I had some trouble getting my password straightened out. The Procad system they had is any early version, possibly V6 or V8 of Bobcad. Yes the system is not very friendly, but it did work. I have my old samples/tutoorials that I got with my machine that I would be happy to send you. The control system is probably a Centroid M-10 Servo although I don't know for sure. The guys at CNTMotion systems in Warren PA built these units and are quite helpful. There is also a cncmotion outfit in Pittsburgh and they are the wrong people.
Almost any cam program has a post processor that will work as it is a very simple FANUC g code. The new bobcad works, although I could never get any good with it and they are a very persistant bunch. There are quit a few not really expensive cad/cam systems out there now and they generally work pretty well.
Hope this helps