First, I've never done anything like this before. I'm a complete idiot with it.

I think I've got the crap needed lying around, so... If I wanted to make a PSX to parallel port interface for use with the DirectPad Pro drivers and the like, I would simply connect each wire from a cut male end of a parallel cable to the corresponding wire (according to the diagram included in DirectPad Pro) on the PSX female (from an extension cable) side? Is there anything else to it?