As far as I know, the only contacts manager on plain old Android 4.x is now called "People" (and it's pretty neat). I'm not at all surprised that Samsung is still using their own contact manager, even though I personally dislike it intensely.

As much as I think the S3 is a really great phone, I'd recommend to anyone that they put Cyanogen on there so they can get something akin to the intended Android experience.

Again, I realize that this isn't helpful at all, so I apologize that I can't help you with this specific problem, because I have no hands-on experience with the S3.