Does it have stepper motors or servos? As I recall, Supertech was an attempt to create a controller that avoided the use of G-codes (SuperCAM was the name of the alternative command system), and used servo instead of stepper motors. All the configuration files necessary to make it work were stored on the Supertech site, but that's long gone. The easiest (if not the cheapest) path to a working mill would be to strip off all the Supertech stuff and replace it with a system that's known to work. Taig can supply a controller and motors if necessary, or you can put your own system together if you want. Alternatively, you can keep researching the Supertech system - let us know if you figure it out...