So to get the story short:
I'm using ALO Newsletter plugin with qTranslate, but unfortunately I had setup the language code for Russian as "RU" - and the newsletter plugin does not read that correctly.
Changing the code to "ru" makes it work perfectly, but all the translation data is being wiped across the post/pages for that lang.
Does any one know a fix to replace the lang code without the need to input all the data once again? (quite a large website)