Standard tuning, can be played on bass also. I got this from his live acoustic version, 
rather than the studio one, watch it here: http://www.youtube.com/watch?v=ipYo_wZLCIM . 
This is my first tab so hope you enjoy!


E----------------|----------------|----------------|----------------|
B----------------|----------------|----------------|----------------|
G--6---6---6---6-|--7---7---7---7-|-11--11--11--11-|--9---9---9---9-|
D--7---7---7---7-|--9---9---9---9-|-12--12--12--12-|--11--11--11--11|
A----------------|----------------|----------------|----------------|
E----------------|----------------|----------------|----------------|

Same riff just continues for the entire song. You'll sort out the timing when you play it.