Did everything, last install from zip, yet not rooted

I did everything, boot-loader unlock, adb download install in pc, install custom rom CWM/TWRP using pc's cmd. Than install ZIP from SD card. It shows me SUCCESS. But when I power on my device It looks like before, no change done. I checked if rooted or not, it shows NOT ROOTED. Why I am failing. I did the process according to the " http://forum.xda-developers.com/showpost.php?p=46430699 " . Please someone help. :confused::confused: :(:( :confused::confused: :(:( :crying::crying::crying::crying: