Custom Sessions with Joomla

Question

I\'ve trying to build Joomla into my existing website so I can use it for premium content.

I\'ve already got a custom-built authentication system that sets my own

Answer 1

Maybe your authentication system uses cookies and sets a cookie path that prevents then browser from sending the session-id cookie back to the joomla script.
The cookie path would probably be set via session_set_cookie_params() or ini_set().