My Tab 2 10.1 is missing features of jelly bean 4.1.1

view full story

http://forums.androidcentral.com – I bought my galaxy tab 2 10.1 three weeks ago. It came with jelly bean 4.1.1 installed. I'm new to androids so I have been reading forums and anything I can find to familiarize myself with the operating system. It seems that I keep reading about screen capture being the volume button and power button but on mine it is a single touchscreen button. The camera also doesn't do what i've read that it should and my notifications don't come from a "shade" from the top but it pops up from the bottom. Can someone tell me if I'm missing something or if samsung just held back certain features? (HowTos)