If you created a co-brand with 5.0, 5.1, or 5.1.1, you need to perform this procedure so that users can log in to the co-brand.
Log in to Portal Studio using the valid Studio user login associated with the default co-brand.
Export the portlets.
Log in to the Studio using a StudioAdmin or PortalAdmin user associated with the co-brand you created.
Import the portlets.
Delete any unwanted newly imported portlets.
Do not delete the login portlet!
Update your guest page to contain the new version of the login portlet.
Update the guest page in the Portal.
