I recently reloaded the game also. It loaded it here: "C:\HiTech Creations\Aces High\aceshigh.exe" opposed to the old location I had it in which was "C:\Program Files\HTC\Aces High II\aceshigh.exe" . If you go to the old location and copy your settings folder into the new location you should be ok.
You may also want to copy maps, terrains, etc over to the new location also, and even plane skins.