Download the file to your desktop. Once its finished downloading, extract (unzip) the file to a folder on your desktop. Look in that folder after u extracted it and see if your have a folder called sounds. Open that sounds folder and makesure there are other folders there with the plane names that are in the game. If they are there then you downloaded and extracted the files correctly. Now go back to the the folder that displays only the sounds folder and right click and hit copy on that sounds folder. The go to c:\hitectcreations\aceshigh folder and look for a sounds folder. When u locate that folder right click and click rename. Rename that folder to soundsbak or what ever you want to name it. After u do that, right click anywhere withing the Aceshigh folder and click paste. The new sounds folder should be there now with the name of it being sounds.
All should be good then.