I have downloaded the WOAI installer from AVSIM and have attempted to install a number of airline packages in FSX. However, on a test flight at Heathrow, not a single aircraft is visible on the ground, despite me having installed numerous airline packages. When I go to "Expert" in the WOAI installer, none of my packages appear. I've installed the airline packages to my C:\Microsoft Flight Simulator X\SimObjects\Airplanes folder. Is this the correct location? Am I missing a step to somehow activate these AI aircraft? If anyone can help, I would be most grateful!