I just got a $2 parallel cable from the thrift store, I've never tested a cable before so am not too sure. All the pins (on the PC side) all tested to be active, but they all don't go chronologically connected on the other end. Most of the top pins are all in order in the other end though. And not all of the flat contact connections (on the printer side) are active, since there's more connections on that end vs the other end.
So I'm guessing as long as all the connections (on the PC side w/pins) are all active I should be ok, right?