Trouble adding a translation / language

hi there, I'm struggling to add hungarian language to my installation.
I've searched forums and wiki but i still can't figure out how to add hungarian.
i downloaded the translation csv file but cannot import it. not sure if I need to "create" hungarian language before importing translation file .
could someone list clearly the steps to adding this language / translation?
thanks!

tim

You first need to add the Language to the system under Admin -> Languages.

Veja o código no GitHub