virtual instrument midi track problem

[acappellajosh]

I'm new to using midi and virtual instruments. I want to import midi that has been done in another program. It opens with no problems. however, my problem is that I don't know how to assign this midi to a virtual instrument that I want to use. I'm using Kontact by native instruments. How do you get your imported midi to play through the VI? The midi tracks don't even have a way to open up a plugin for the virtual instrument. I can open up the virtual instrument (in the mixer view) on an audio track, but not a midi track. How does this all work? Please help. also, I'm not using any external midi devices, only the VI.
Josh