Welcome to the community. 
First of all, however, please do not post in threads that are years old. This is called “necromancing” and it is frowned upon in many internet communities, because the information in the thread is likely to be outdated and no longer relevant. I split your post into its own thread.
For your issue, see here: "These cheats were made for the 64-bit version of the game, you are running the 32-bit version" - #2 by Ravenfyre.
Also you have not mentioned whether you are playing the classic game (released in 2005) or the newer remake of the game (released in 2017).