i have downloaded a few planes but cant find them on fs2004 to fly. can anyone hep me out
Go to the menu box (where you see the aircraft) and put a checkmark in "show all variations".
If you installed them properly they should show up.
how do i know if it installed properly
If it flies it's right, if it doesn't fly then it's wrong.
The we will try to figure out why it doesn't work.