Ok, did some reading on this site and found out that in order to change a sound file, you have to edit the sound file then rebuild the events.idx and events.dat files. In order to do that you must have ALL of the sound txt files. So... Download the sound text file from the downloads section of this site, extract them from the rar, copy all of those files to your data folder of your mod EXCEPT the desc_accents or whichever file you've changed. Keep the changed one though obviously. Now goto sounds folder of your mod and delete the events.idx file and events.dat file. Start up the mod and the game will rebuild those files including the changes you made.
BUT YOU MUST HAVE ALL THE SOUND FILES or it won't rebuild.