I found this thread and downloaded and extracted all I needed;

http://www.ipmart-forum.com/showthread.php?t=196069

But I don't know what he means by copying into the cracked folder. I have the original Zoo Tycoon 2, but can someone be specific please? Thanks.

Ask in the section where you got it from... No need to make a new post...
Think you need to find out where the game is installed and extract the cracked exe file or whatever it is with the normal one...

Like C:\Program Files\game and replace ge.exe with the cracked ge.exe

Sorry, but nobody responded to the topic. Anyway, the thing is that the game isn't installing, so I don't think it is found in c/program files. What do I do? Thanks.