I've noticed that in some people's profiles it says they are definitely coming but are not officially registered. Signing on to this site doesn't automatically register you for TIS.
To be registered, go to the button on the left of the main page and click, "Sign Up Now" to be a participant at the event which is next Wednesday, January 21st. Registration begins at 8am.

First: Join a pre-event group and register online to come to the event..

Second: Post a blog entry to introduce yourself and your business.

Third: Share and ask questions about specific topics, post ideas, invite others, make appointments with people you would like to meet at the event on January 21, 2009.