How do I create public folders?

Start the Exchange client

From the View menu select "Folder List" if not already enabled

Expand "Public Folders" and double click on "All Public Folders"

From the File menu select New - Folder

In the dialog enter a name and click OK

You can also have an optional shortcut created on the Outlook bar at this point by clicking Yes to the "Add shortcut to Outlook Bar" dialog (if you have the Outlook Bar visible)