For those who couldn't follow instruction in [Only registered and activated users can see links. ]
Here is a Czech voice pack using VocalizerEx (formerly Nuance) for Android.
Created from Nuance TTS for WinCE and tested on Primo 2.4 with all TTSPro functions working by osiris4isis. For personal uses only and not to be sold.
Update: voice file now works with NextGen (including Basarsoft)