I am going to assume that you have the Jam Origin MIDI guitar software.

According to their web page
http://www.jamorigin.com/products/midi-guitar/

you need to use the VST version.

I do not record in BiaB so I will pass on trying to tell you how to record from a VST and let someone who has explain how to do it.

My question is why try this in BiaB? I take the tracks from BiaB and plug them into my DAW, Sonar, and I do all of my MIDI recordings there. Since you have Pro Tools that is where I would record if I were you.

If Pro Tools is not a good for MIDI recording, I have no experience with it so I don't know, and if you have the Windows version of BiaB I would record in RealBand then move everything over to Pro Tools. I am not a heavy user of RealBand so again I will leave the recording explanation to those pros who use it.

BiaB is a fantastic backing track program but it is not a DAW.

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware