PHP OOP

I read the discussion of Login information. This brings me to my question. I am trying to do as much OOP with this as possible. However, I am using frames to build my internal web pages. The frames are nice to allow me the ability to keep the look consistant, however, the target and the action are a pain passing information through.

I developed a user class. This develops an object of the user, however, I still feel that the there is a lack of connection between the pages. Am I shooting for an impossible dream of being completely OOP?