Here's another, safer, way to use the ZA Map Editor. First, create a file somewhere on your hard drive (in My Documents for example) and name it ZA Map Editor. Then unzip the files into this folder. After you read the text file, take the Map Editor and move it into your ZooTycoon dlupdate folder (not the main folder). When you start up your game, you will find the map editor objects in the objects tab. When you are finished with the map editor, make sure you move it back to the file folder you set up for it-that way you'll always know where to find it. Make sure you delete the zoo entrance on the map you're modifying first, then go back to the Main Menu-it will ask you if you want to save your current game. Say yes, and rename it with something that describes what you're making (I always use the word "map" at the end of it so I know it's one of my creations). Then when the main screen comes back up, click on Load a Saved Game, find your map and open it. Presto!!! There's the new map in progress, and you can begin to delete walls, redesign them-whatever you want. Just be sure to keep the new walls and objects at least one tile away from the edge of the map, otherwise it will cause the game to crash (not a good thing! :pinch: ). Let us know if you have any more questions about it-we're happy to help!!
Edit: I must be slipping--this goes in ZT 1 Download Support, so moving there.