[CR #334589-2] When you import portlets and pages from Enterprise Portal version 5.1.1 to version 6.0, you cannot access guest pages and portlets that had only the PortalGuest role assigned to them.
Workaround: Follow these steps:
Assign the StudioAdmin role to a user.
Log in to Portal Studio, and select a resource.
Assign the PortalGuest role to the user.
Log in as the user to confirm that this user can see the imported page and portlet that only had PortalGuest role.
Assign the “everybody” role to these pages and portlets, so that other users can see them.