S2 subscribers not showing up in Mail Chimp

Im using the Divi theme with S2 free. Ive got the api key and id from Mailchimp loaded into the Api/list servers window. Im expecting the emails of the new subscribers to be added into the MC list but thats not the case. Is this the way it works or am I misunderstanding something? Any suggestions?
Thanks a bunch,
Christopher

Did you set up the API with the level? Not all level would automatically go onto the same list. It is not by default.
Also, do you know there is a plugin that ensures that members are synchronizes (both ways) between your site and your list? check it here:
http://krumch.com/2012/08/24/kc-bidirectional-integration-of-s2member-with-mailchimp/?ap_id=Cassel

(this is an affiliate link but only for tracking purposes as i am not getting any commission on it)

Thanks Carole!
Im trying out the KC s2M+MC plugin. Its definitely created some communication between S2 and MC.
Im still looking at the lists and designing a test email to find out if the integration is complete. Thanks again and Ill let you know how it goes,
Christopher