Hi,
are you sure that it worked? Because if it did, you'd have to have SuperUser application installed on your phone. It should be visible where all the other apps are. Basically this SuperUser app allows other apps' access to the 'su' binary and therefore allows them to execute commands with root privileges.
From what I've seen in the script, it should write something like "Successful, going to reboot your device in 10 seconds!" or "Good, it worked! Now we are rebooting soon, please be patient!" to the console.
Ondra