AI Traffic Not There as they Should Be

I need help. I recently backdated my KJFK to 1979, in preperation for installing RetroAI's files (Who wouldn't want to go back to the 70's? :D) But after compiling the American Airlines 1976 file in TTools to see if it would work, I went to a number of American hubs (O'hare, JFK, DFW) All of which have enough and big enough parking to handle the old AAL 741's, and there was no traffic at all. I run FS9 on Window's 7, started both FS9 and TTools as an admin, and the compile went without a hitch, and i verified the traffic file was in the correct folder, and that all the aircraft it needed were correctly referenced in the 'Aircraft.txt' file. What could be my problem?