Voice configuration is depended on what voice engine (VocalizerTTS, VocalizerEx, VocalizerEx2, ve1, ve2, etc...) AND the proggy you're using. You can't take a voice config made for iGO and expected to work with all other proggy such as NextGen. Even different versions of NextGen proggy changes, and a voice config that works on one version of NextGen isn't guarantee to work on another.