To have a public shared calendar show up in the left pane Calendar section of Outlook 2003 or 2007, add it to your Favorites, to eliminate having to navigating to it each time.
- In Outlook, Mail section, if the Public Folders section is not displayed by default in the left pane, click on the icon near the bottom of the pane to show more folders.
- Navigate to the Public Calendar within the Public Folders section.
- Right-click the name of the shared calendar.
- Select Add to Favorites.
That Public Folder Calendar will now automatically be listed in the Calendar section.