Okay, so I've got a bit further... I think.
I've tried all the ports/pins settings I've tried before, including the ones cropwell gave me. This time, the motors make quite a bit of noise, and I did get one to vibrate when I was using the jog tool. My parallel port says it's base address is CCF8, I tried putting this into Mach as 0xcf8 and 0xccf8 what is the correct format? Beyond this is it just a case of trying to get the right ports/pins, or have I wired the motors wrongly, or have I got the wrong step settings on the DIP switches? Thanks again.