I noticed that the "PooNannersBETA10.rtst_vpk" is on the wrong location and that you are also missing the custom background .png file. Also noted that the old files from previous versions are no longer needed. They can be deleted, but really it shouldn't mess with the new version. Maybe you got a bit confused with the old and new files mixed.
Remember when you load the new version that you specifically load the "PooNannersBETA10.rtst_vpk" that should be placed/located inside the "VoicePacks" folder. Let me know if it still doesn't work for you. But hopefully this will sort out the issues.
Edit: In 0.10 version the ".rtst_vpk" files contain all the sound files. So the folder containing the sound files from older versions is no longer needed. It's all in one basically.