Normally there is a Virtual Cockpit of the default 737 of FSX in this airplane. But if you don't want the 
virtual cockpit, then you need to do the following steps.

1. Change the name of the "aircraft.cfg" file to "aircraft_backup.cfg".
   (Microsoft Games/Microsoft Flight Simulator X/SimObjects/Airplanes/Project Opensky 738 Air Berlin)

2. Change the name of the "aircraft_no_vc.cfg" to "aircraft.cfg".
   (Microsoft Games/Microsoft Flight Simulator X/SimObjects/Airplanes/Project Opensky 738 Air Berlin)

3. Go to the "model" folder and delete the file "B737_800_interior.mdl".
   (Microsoft Games/Microsoft Flight Simulator X/SimObjects/Airplanes/Project Opensky 738 Air Berlin/model)

4. Change the name of the "model.cfg" file to "model_backup.cfg".
   (Microsoft Games/Microsoft Flight Simulator X/SimObjects/Airplanes/Project Opensky 738 Air Berlin/model)

5. Change the name of the "model_no_vc.cfg" file to "model.cfg".
   (Microsoft Games/Microsoft Flight Simulator X/SimObjects/Airplanes/Project Opensky 738 Air Berlin/model)

Now the Virtual Cockpit will be gone.

--Misha Grift--