Help: sorry, registration is closed on this thinkup installati...
If you've encountered this error, it means you tried to sign up for an account on a ThinkUp instance that isn't accepting new users. If you know the administrator of the ThinkUp installation you're trying to access, you can ask them to enable registration so that you can sign up.
If you'd like to run your own instance of ThinkUp instead, visit http://ThinkUpApp.com to get started.