When double clicking on a drum kit in 1.6.6©, the resulting Wave folder does not appear in the User_lib>Wave_Sources folder. Rather, they appeared to get buried in whatever folder one last created a wave in. Example: Today I found my waves in Documents>NP P_Bass and Better Strings XRL>72_Stings C1>NP PBass and Better Strings XRL>127 Strings G5>NP PBAss and Blues HArp>75 Harp Eb3>NP P Bass and Blues Harp>108 Harp C6>Ambient Drums>0-808 kick>Ambient Drum WAVES.
Also, If I then move the folder to the correct location within User_lib, the link is broken and the waves do not play in BBM with that kit.