Whoops, my bad - I did mean parallel cable. I'll be happy to provide any other details, but as far as hardware there's not much more to it:
Dell Optiplex desktop (2.something GHz... not a speed demon but certainly capable)
Windoze XP
Parallel cable to stepper drivers
3X stepper drivers - Camtronics design, I put them together from kits
Drivers to Sanyo Denki steppers
Steppers attached to ballscrews on my own Mill/Drill conversion
I watched the video and assigned the correct Parallel port address (the default was OK) and Step and Direction pinouts for the parallel cable. These settings matched those in CNCpro. All ports for X Y and Z axis were set to "1"
As you said, the program looks highly configurable, so there's probably more I can set up, but I'm not having any luck yet. The fact that I get "something" from the Z-axis tells me that at least it's getting signals from the driver, I'm guessing I just need to tune the parameters to make it work correctly. Still though, with the exact same hardware, it's odd that X and Y don't work. In fact, if I plug the X motor into the Z driver, the X works fine.