I guess I did install that because it is there and that is almost exactly what I wanted. I was hoping it would have a check box to enable a certain process through, for example vnc, which I think uses port 5901. How do I do that?
There's a text field at the bottom of the "trusted" list of services, where you can add custom ports/protocols, like:
5901:tcp
You can separate various ports with comma: 5901:tcp, 5902:tcp, 6900:udp, ...
Hope that helps
-- Mariano