Did you get the GM wiring harness with what you bought? It makes the job very easy. I'd look around Jacobs website: www.jacobselectronics.com
They have wiring diagrams there. Basically the white and black wires go to the ultra coil. the red and green wires connect to the wires coming from your distributor. And the red and black wires connect to the battery.
For reference I have the Pro-Street on my 85 Berlinetta. IT makes a difference in starting and driving. My car is 200 miles away from me though, so I can't go look at how the wires are connected. I'd suggest to call jacobs and get the harness for your car. It's worth it.
This other thing you talk about, is it a secondary trigger? If so, then you plug the coil wire into it and connect the two smaller wires to the red and green wires coming out of the pro-street computer.