This post has been marked by the post author as the answer.
go to...
\Game Guru\Files\audiobank\voices\todd
find the file named....
jetpack.wav
and replace it with the file you want to use.
just make sure to name your replacement file...
jetpack.wav
so the program will still find it and use the new file.
UNIRD12B
Let\'s actually make something happen with this one !