"went to put it in gear and nothing... It won't go into any gear, or reverse".
"The problem is that the shifter will move the trans lever, but nothing happens- the transmission won't go into gear."
I think I misunderstood your problem.
I assumed you took down a fully working trans, and had made no changes to it.
When you said "trans doesnt go in gear", I assumed you meant it had no drive.AS in propulsion.I think I may have assumed too much.
Diymirage may be on the right track.
I cant imagine how a manual valve could become disengaged on a Mopar trans with the VB installed.A GM yes. However, if the manual valve has become disengaged, it matches your symptoms better than anything else I put out there,so far.
So after the jackstand/linkage-disconnect test, If something seems amiss, a VB inspection might be in order.
Diymirage, good call.