OK, well here's the fix files. Because my airpost seems different from what onderunway said. They are both in the attached .zip file.
INSTRUCTIONS:
1: Download the .zip file and extract (unzip) the file.
2: Replace (or delete the originals then put the new ones in) the original Area 51 files with the attached ones in this location:
Computer/My Documents/RealFlight G4/Scenery/Airports folder.
Now load up RealFlight and you should be done!