Are you missing the Prehistoric Party? Well I've just stumbled across a way to log into ALL Prehistoric Party rooms! All you have to do is log in by using this link http://play.clubpenguin.com/?rm=853#/login you'll be at the a Prehistortic Party!
This is awesome! Normally when you login you can only visit the room you logged into, but for this the links to the other rooms are working. Have fun in the Prehistoric Party! If you use this for your own site, please give us credit for discovering it.