Little help installing aisnd101 / reverse AI sound ?!

Hello,I tried to improve AI sound and particularly reverse thrust sound. I tried " aisnd101 " but altough I followed strictly the readme (paste the files in the sound directory and modify the aicraft.cfg - effects section) I cannot hear any specific change !?! I need to say that I tried different sounds packs but none works. I could modify the "overall" AI aircraft sound but not the reverse sound.Any help ?Someone tried some sound sets and modifications that works ???I apologize for my bad english (not my mother langage).Thanks a lotCedric