I have just gotten a galaxy s 3 and am trying to get the notifications of a new message to show up at a push notification on my lock screen. I have looked for setting to change to do so but can't find anything other than the message showing up in my lock screen. Can someone help me? ?
As far as I know, there is no setting for this unfortunately.
Samsung will occasionally update the S3 with OS updates such as recently to 4.3 which changed the way text messages are displayed on the lock screen. So it not only depends on which version of Android you are running but which Samsung update you have got.
Perhaps you can try download a lock screen replacement app from the Play Store?