Trust me so many people have tried that yet it never works they laugh at you and hang up, looking online for a key will be a waste of time as they are all banned or taken by people(the games been out for what 5 years) there is 2 things you can do....

-buy the game for 20$ dollars you cheapskate

- or, go to your local electronics store, open the game to look at the gamebook and copy down the cd key

hopefully the person that buys the game doesnt report it and get it banned when they try to reg. it and its already taken.