Hi Callahan,
works fine for me: see below:but!

The installer should point to yout fxs root directory, in my case it was C:\Microsoft Games\Microsoft Flight Simulator X
If I was to change this in anyway, the aircraft would not appear, after install select aircraft manufacture to be Grumman, the Tracker should appear along with any other Grumman aircarft you have.
The but! part: There is no sound with this aircraft as there is no sound folder, needs one copying from a twin prop/twin turbo or single turbo, Maule maybe OK.
regards
Steve