Reason MIDI Outputs

My original MBox on an old PC finally took a crap... so I broke down and purchased a macbook pro, MBox3 with ProTools Express 10.3.4, and ProTools 11 Crossgrade (which still hasn't arrived). The Adapted Reason I used to use on my old system would not install on my new mac, so I also purchased Reason 7.1. I now have everything installed and working... sort of. I can insert Reason on an aux channel and if I play one of the reason instruments I can see signal on the aux channel and hear the sound coming out of the MBox. But when I setup a MIDI track and go to my outputs on the MIDI track, none of my Reason instruments are available in the drop down menu. I really really need this to work, so any help would be greatly appreciated!