We included Wolfie's WW2 Japanese tank in the AI Package for Old Rhinebeck Aerodrome. (We used it because the it's almost an exact copy of the WW1 French tank they have at ORA.) That was so long ago that I don't recall whether it was already drivable or if we had to modify it.
What I do know is that we had to modify it to make it shoot the gun and blow stuff up. (Yep, you can blow stuff up in FS9, though they don't stay blown up after the flame and smoke clear away.)
You can find the ORA AI package here and at FlightSim.com
I belive ORA itself is here and at AvSim.com