I am sure there are many ways to make this happen some better then others.
-IF values never change once they are logged in then you could pass them in a FlashVars... kinda oldschool but still works - Write them as JavaScript vars on page and read them in, like with at External Interface (http://livedocs.adobe.com/flex/2/langref/flash/external/ExternalInterfa ce.html) or Flex/AJax bridge - Write a service (jsp or something) that returns the users session vars as XML and just call the service anytime you want to recheck the users current session values.
