Thanks for the great rooting guide guys, almost worked first time... (root locked in but simplified Chinese remained)
I had to do this manually at the end after the first reboot in order to get it back into English:
1) Stop Vroot again
2) Found SuperSU in the data/app folder (eu.chainfire.supersu-1.apk), and used the move command in Root Browser to place it in system/apps dir.
4) SuperSU kicked in & asked for some confirmation after which English language version appeared
5) rebooted and re-checked all working.
Maybe I missed installing SuperSU as a system app and just ran it normally... nevermind all good & thanks again!
Edited by MeltedWelly - 9/2/13 at 8:38am