I've already got "simV fever" that's why I'm going insane to get these planes to work.
also I keep clicking on the AIR. file and it says the file is corrupted do you know anything about this?
You can't open those (AIR. files) without the software used to create them, and you shouldn't have any reason to do so (to install it, anyway). The "corrupt" message is probably just your OS's default "I dunno" response to a file it can't deal with.
As Jakes pointed out, these amateur-authored download folders are often tricky to sort out and install correctly... a typical problem is that the author packs them up in layers of folders, and things get separated, mislabeled or whatever.
And as others have also pointed out, your demand, or request, or whatever it is cannot be dealt with here unless we know the identity of at least one of the aircraft packages in question. There are thousands, and they're all different.