Stop what you are doing. You are making really really big mistakes.
The link that you posted is for a different device. It's for the Moto G. If you flash that one your device, chances are you can trow your cellphone into the bin.
Second, you don't have a standard S4, you have one from AT&T. You are in the wrong part of the forum.
I think untill you stop making these basic mistakes, you should stop trying to flash. Browse the correct forum for you device, read and learn. If you keep going this way then you end up with a bricked device.
Go read the threads in this part and learn the basics: http://forum.xda-developers.com/galaxy-s4-att
Samsung Galaxy S 4 I9505 | WanamLite v2.6
Samsung Galaxy S II I9100 : AOKP 4.2.1
HTC Touch Pro2 | ROM: Valkyrie 6.5.23115TR2.5
HTC HD2 | DarkStone1337 [FroyoStone Sense - V3.2]
HTC Desire : Oxygen v2.1.3