You can use it with any z interpreter as mentioned above. Keep in mind the above remark about unauthorized distribution. You should direct people to the site, nowhere else. There will be an all-new Hitchhiker game to go along with the movie, though. Work on this game has in fact already started.
Bureaucracy is slightly easier.
Look, it's simple. DO NOT post the games on your web site. DO NOT post requests for the games or offers to send them. And most of all DO NOT post the games themselves to the group.