That's right, only a few days ago, someone uncovered the beta version of ZT and has posted it for download at Zoo Tycoon Hideout. It contains extra foliage, terrain, and more, and I think you should all check it out. You have to register to access it. It's a 124 MB download, and it is in .rar format, simply decompress and you can play it. I'm eager to see what it has. It may thouroughly enhance our understanding of ZT as we know it, so I highly recommend you check it out.
Here's the link to