The rules are available online and several people have posted translations here already. So it seems to me that there really shouldn't be an issue.
Just make sure that you don't leave out the credits.
Yes, I am not concerned primarily for the translation itself (as I think Adam would not oppose to spread the word into another language ), I am mainly asking if the original layout from the english rules could be re-used (probably not by me, but if Adam would share....)...
Ah, I take it back - saw the Polish rules