I don't have much problems between flex sessions and sessions
in a JSP (if that is what you mean).
I would suggest to investigate some time using Blaze-DS
because it will give you a must faster response time then using
What is your exact problem using sessions??
Here is a example what I do :
set user_id in a session
get it back:
get it in a JSP page:
user_id = session.getAttribute("user_id");