As most of my tabs are, this is not perfect, itll just give you the basic idea of how he plays this.  It is in standard.

----------------------------------------0------------
----------1-----1h3---3-----------3-------3-1-0------
--------0-----0-----------0-----0-----0---------2-0--
----0h2-----2-------2---2-----0-----0----------------
--3-------------------------2------------------------
-----------------------------------------------------

----------------------0------------------------------
----------1-----0h1------------------1---------------
--------2-----2-----2------------------2-2p0---0-----
----0h2-----2------------2-------2h3---------2---2---
--0--------------------------0h3---------------------
---------------------------1-------------------------

That is the basic idea for the main riff.  There are many variations but I am not tabbing them because if you can master that riff then you can figure out the variations without problem.

The times when he is picking he is playing that riff, when he is not, he is just strumming that same chord progression which is--C G/B Am F

These are the formations:
---------------------
--1----1----1----1---
--0----0----2----2---
--2----0----2----3---
--3----2----0----3---
-----------------1---

Its an easy song once you get going.  If you have any questions or comments then email me at [email protected]
Play in Christ.