You need to open up your comupter or, "My Computer" and click on "local disc".
And then look for the "program data" file. and then look for the "microsoft games" folder and click the "zoo tycoon 2" folder, and it should open a dowload file.
Open it and open the next file it opens.
Then open up the file on a fansite you want to open.
Then place the "dl" file, it is called dl becaude it has dl on the end of the file name.
Next take the file, such as king kond and drag it in to any yellow file and make sure the dl file is next to another dl file out of a yellow folder.
close the window and enjoy your new animal.
WARNING DOWNLOADED ANIMALS CAN'T GET DONATIONS!!!!
AND DONT DOWNLOAD THE DOMESTIC CAT IT MESSES UP YOUR GAME!!!