I am trying to set up a push notification system for my application. I have a server and a developer license to set up the push notification service.
I am currently
To register to receive push notifications via Apple Push Service you have to call a registerForRemoteNotifications() method of UIApplication.
If registration succeeds, the app calls your app delegate object’s application:didRegisterForRemoteNotificationsWithDeviceToken: method and passes it a device token.
You should pass this token along to the server you use to generate push notifications for the device. If registration fails, the app calls its app delegate’s application:didFailToRegisterForRemoteNotificationsWithError: method instead.
Have a look into Local and Push Notification Programming Guide.