Do you have any info on the motors, make model etc,,,, can you google.
what is needed to setup, is the pins that control direction and step on each motor. If it was running before, I assume that all we need to do is set the software to the right settings and not mess with the switches.
The interface is a parallel port? If so pins are limited, 2,3 4,5 6,7 maybe
Take one axis at a time and see if any combination will generate some reaction.
Anything indicated on the circuit board in the controller?