Adding Aircraft Files

Ok, I know this topic has been covered many -a-time, but I have a zero success rate for doing this. I'm no dummy, but I can't seem to get aircraft to work, or even show-up in my aircraft listing in FSX.
Yes, I have placed the aircraft file into the simobject/aircraft folder.
Yes, on occasion I have also placed gages and effects, per the developers instructions, into the gages and effects folders.
I have done the following per these really well explained instructions and still nothing.
1.Copy the aircraft folder (in this case the paf folder) into C:\Program Files\Microsoft Games\Microsoft Flight Simulator X\SimObjects\Airplanes folder.
2.Copy all of the files in the gauges folder and put them in the C:\Program Files\Microsoft Games\Microsoft Flight Simulator X\Gauges folder.
3.Copy all of the effects from the effects folder and put them in the C:\Program Files\Microsoft Games\Microsoft Flight Simulator X\Effects folder.
Please help this evidently challanged AF Major...
Thanks,
AFSOC guy
Yes, I have placed the aircraft file into the simobject/aircraft folder.
Yes, on occasion I have also placed gages and effects, per the developers instructions, into the gages and effects folders.
I have done the following per these really well explained instructions and still nothing.
1.Copy the aircraft folder (in this case the paf folder) into C:\Program Files\Microsoft Games\Microsoft Flight Simulator X\SimObjects\Airplanes folder.
2.Copy all of the files in the gauges folder and put them in the C:\Program Files\Microsoft Games\Microsoft Flight Simulator X\Gauges folder.
3.Copy all of the effects from the effects folder and put them in the C:\Program Files\Microsoft Games\Microsoft Flight Simulator X\Effects folder.
Please help this evidently challanged AF Major...

Thanks,
AFSOC guy