Hi Greg, Tadhg,
The message typically means you are not logged into your Google (Apps) account, but your application is configured to allow access without requiring login for most actions. Do you see a "Sign In" link at the top right?
Unfortunately, changes in the way the Google Apps Administrative Console works have made it impossible to reach the settings page for most domain admins. We're working on a new solution and hope to have an update soon.
Thanks,
Danut