photo website

I would like a photograph website that mimic's "picassa's 3"? ? time line feature.? ? ? I would like an admin section to add new "groups of photo's",? create and edit user name/passwords First page should be a log-in page,? with logo at top,? and username / password entry then opens to the "time line" viewer You can see what i want by downloading and installing picassa(its free) ? and then let it pick up the pictures on your computer.? then go to View,? then timeline.? I would like to mimick that as much as possible. Douglas