I kind of got it fixed. It seems that Ivona updated the language packs. I used ES file Explorer to navigate to the Ivona folder and deleted all the contents of the folder. I then downloaded Ivona HQ and updated language pack from 1Mobile. However, I'm not able to use PICO as the default TTS library. It is stuck on Ivona. Here's the links for the updated HQ and language packs from 1Mobile:
HQ :
http://www.1mobile.com/ivona-text-to...hq-350250.html
Kendra English:
http://www.1mobile.com/ivona-kendra-...ta-348586.html
Amy UK:
http://www.1mobile.com/ivona-amy-uk-...ta-348584.html
Nicole AU:
http://www.1mobile.com/ivona-nicole-...ta-348582.html