Firstly I'd try putting the kernel speed down to 25Khz. I doubt that's causing a problem at the moment, but it may do later on. Do you really need it at 35Khz for the feedrate you anticipate?

Here's the manual for the 4 axis board...

http://www.savebase.com/infobase/dow...xis_Driver.doc

If you trust the settings shown there, then yes I see no problem with how you've set it.

The only thing I can think of doing now is to trace the pins on the PCB. i.e. look at each pin on the parallel port connector on the PCB and see where it connects. You should be able to verify the step/dir settings quite easily doing this. I once did it for an unknown stepper driver board....