I don't think your old parallel config would have worked like you're setup either. You need PINS assigned, not just PORT 1 PIN 0. So first, work out what pins your stuff is connected to and enter it in the Mach3 setup, then we can go from there. Or uncheck Spindle and Home/Limits. If you have them checked, they need to be assigned a proper port and pin. The SS won't change any of what you had with your parallel port, just needs to be setup correctly.
How did you set this up, by copying your old config and setting, or starting from scratch? Really doesn't matter how you got where you are, just that PINS need to be assigned. You can perhaps go back and look at your old config and see what pins are assigned. OH, and normally, but NOT necessarily, X is Port 1, Pins 2 and 3. Pins 14 and 16 are often used for spindle, so you have to check something, your wiring or your old config, to see what's connected where and get Mach3 to match.