Can fix my iPhone notification?

My english bad. I have iPhone 3gs and the iOS is 5.1.1 and jailbroken. My problem is the notifications. Example: (app: twitter) my friend mentioned me but there's no notification in my homescreen/lockscreen, the notification popout (app notification) when i open the app. That also happened to other app like LINE, Facebook. How to make the notification pop out when i'm in homescreen? I'm indonesian.

You're English is perfect i understand. What you do is go to settings then go to notifications then look for twitter or facebook or apps you said don't pop up.tap on it then pick whether you want it as a banner or alerts.alerts would be better if you want it to pop up then set view in lockscreen, sounds and badge icons as on and thats it really

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