Lord Of The Rings: The Two Towers, The

I can not understand!

During playback, pause the game and hold L and R buttons, then enter a code like Invincibility: Y, B, A, X

well first u beat the whole game without cheats until u get to tour with u othnach ilsudur.when beat that u can now use cheats!
foolw u If so, press L and R at the startup screen and imput the code!