Inside your Turok folder there is a file named Game.kpf rename it to Game.zip. Then you can open it and see all the data for the game. Like textures, model files, scripts, defs, and you know the data inside. You can take all of that stuff out of the zip now into any folder you want. You could even make a new folder called Turok mods on your desktop and put it all there. Once you take all the files out of the zip rename game.zip back to game.kpf

There's no "sounds" folder in the same folder as sobek.exe, right?
No other kpf files in the mods folder?
Can you post the kpf for your mod?

Just as an attachment should be fine.

Well, shit.  I was asking all these questions assuming that the game wasn't overriding the wav file properly, but the problem is the game thinks there's something wrong with the wav file.  I opened it in audacity and simply re-exported it to see if it would fill in whatever header or whatever the game thought was missing, and it seems to be working properly.  I guess Quake just uses an old and/or hacky wav format or something.

Sorry, man, my first question should've been to clarify what the actual problem was.  Anyway, here's the re-exported version.

Oooh the Quake guy jump sound is a good sound love it. Cool idea.