Other than English dubbing - Polish and Czech

[SasakrCZ]

In retail, this game was released with the Polish dubbing on the Polish market and with the Czech dubbing on the Czech market. I even got the retail version but I can't get the dubbing working by any means. Even after replacing the files which seem to be responsible for copilot, the game still speaks English. After replacing all game files, the game doesn't launch anymore. Is there anybody smarter than me who can figure it out how to import dubbing from retails versions?

Thank you