SpiritZeroThree

Hey all, i've been lurking around here for awhile, just getting into SFP1 again after getting the bad taste out of my mouth. (Had the original Wal-Mart release.... ) Anyway, i have a quick question regardin the installation of some user created aircraft. I've downloaded a bunch of them. Most have gone in no problem, but there are a few that do not show up in the menu when i go to create a single mission. The Team Viper F-16B IAF and F-16A IAF are two of the planes that i'd really love to fly but can't. is there an ini file somewhere that i need to edit and i'm forgetting about or something?

Thanks BUFF, that probably explains why a few others don't work aswell. Not that they were uploaded wrong, i jsut edited a couple of folde names to keep things neat