How do I set this up?

To find out more about Google Page Creator, it is suggested that you read their plain English explanation at http://pages.google.com/-/about.html.

To sign up, as with the other Google tools, you will need a free Google account. You can do this at http://pages.google.com.

All of your web pages will be stored at 'http://yoursitename.googlepages.com' so that everyone with access to the internet can see them.