My public event contains a public gallery but the galleries only show up when using the participant code on the URL and not the /event/eventname simple url. From the documentation I thought optional event registration "allows person to browse the event as a guest".
http://www.studio-r.us/event/Agusta <== galleries do not display http://www.studio-r.us/event/confirm.mg?sgid=255149&guid=3403726ecd2a51da49d9da3a0a890e8a <== galleries DO display