i have make a lang pack, too
it's for german users, like me
i have translate the menu (click on +);
the playlist editor (the buttons context-menu from add, rem,...(not the buttons, that is make by the skin));
right click in the playlist and right click in the right from the playlist (loaded playlists)
then i have chage key z&y, because these keys are exchange of the german keyboard.
is there anythink else to translate?