The zip contains Client.bat and Server.bat (as well as the java files, and vbs file). Run Server to activate the server on your computer on port 2004, and run Client to get hooked up to an ip. (for testing purposes try connecting to yourself).
I found out that because of some wireless router(that are not mine) issues at my apartment I can't host a demo server... I can however connect to other people's computers. So I was able to test it. And it does work.