Si3nna,
I never got called, even though I did the Initial Test almost a month ago. Better luck next time, me thinks!
Everyone else,
One of my friends who did the Aptitude Test remarked that it was actually more difficult to do the individual items, as opposed to the simulataneous exercises. I don't know if anyone else who has done the AT would agree; but his viewpoint came because he was doing everything at the same time and it left him no room to think about being nervous. Also, as the simulataneous exercises were done near to the end of the AT, because he had already done the exercises individually, he knew what to expect.
And yes, you get your scores instantly afterwards.