Or....take the downloaded file. take the folder that contains the sounds and cut and paste onto your desktop. The go to the folder of the aircraft you want to put the sounds in. Then delete the folder "sound" in the aircraft's folder. Then go to your downloaded folder and rename it simply "sound". Then just simply put it in the desired aircraft folder and there you are!
I know it sounds long and hard but it's easy (at least for me) and safe