i had a mess about the other night and im sure this is the way he plays it , its really 
pretty much just 2 main notes

no bass for intro

-----------------------------------------------------|
-----------------------------------------------------|
------------------------222222222222-----------------|
--222222222222---------------------------------------|

bridge
-----------------------------------------------------|
-----------------------------------------------------|
---------44-4-4-4-44---------------------------------|
-----------------------------------------------------|
thats pretty much it
listen to the song for the timing really easy
enjoy
Kevin