I am new to downloading and installing and followed all directions to a T but continued to get aircraft that wouldn't show up. I am using FSX and windows 7. After playing around with the ones that wouldn't show up after installing them I found that if you go into the folder of the aircraft that won't show up there is usually another folder with the name of the airplane which has a bunch of the files needed, I just cut everything from the second folder and pasted it in the main folder of the aircraft. Every single plane showed up after doing this to each of the no-show downloaded airplanes. Hope this makes sense and the moderators add this to the sticky.