The mod states that it requires OP+ 3.3 for its shiplist. This is an obsolete version of OP+ (the current is 4.0). The mirror for 3.3 stated in the readme is long gone, and you can only experiment with 4.0: Dynaverse.net
I cannot guarantee that it will work. I didn't test the mod, I'm merely salvaging it from GameFront.
Have fun!