No Autopilot on Boeing 777

[msmith]

I downloaded the Flightfactor Boeing 777 for X-Plane.  It seems to work, but the autopilot buttons/switches won't respond when I try to click the or change.  I don't understand why it's not working.  If anyone know anything about or why its not working, I would appreciate any help.  Thanks.  

[SwissCyul]

You seem to be using a very old version of the FF 777. This is the old cockpit and the T7 avionics plugin is not working correctly! Please download the most recent version of the 777 from your account and follow the instructions on how to install the aircraft. You also need Microsoft C++ 2015 64bit for this aircraft. Judging from your screenshot the aircraft won't even be able to fly.