Well, what version of the game you want?
If you are looking for files 6.67, you will never find. At this moment only 2 sources are traveling the internet... One is 90% complete and is in Korean, and the other is 95% complete (this 5% is some edited things to fit in the original sources) and is in chinese...
Someon posted the Korean files in this fórum, but with a password that no one can break...