The first time I used ExtranetLook component, I liked it, because of the log-in screen, and log-out functionality. But later I discovered that this component is not compatible with other UCM components, as an example this component sometimes you will not be allowed you to log-into the Content Server using Site Studio designer, another example you will not be able to index scanned into the content server using Dynamic Converter.
I don't know why Oracle is releasing that component, and in general why they are releasing incomplete components???
I recommend anyone to not use ExtranetLook component.