[solved]one simple question, pliz help

i have a Samsung Galaxy Note GT-N7000 stock ROM, NOT root, NOT flashed

i want to install Stock JB ROM: N7000XXLT4 N7000OXALT4 - Germany

my version 4.0.3 , N7000XXLPT , 3.0.15-N7000XXLQ3-CL646962

can i just flash it with odin or do i need to root my device ?

rom here:
http://forum.xda-developers.com/show....php?t=1424997