I watched the live version of this song until I figured out exactly how Ben plays this song. This is the 
skeleton. He adds on variations, but you can have fun with that by yourself. This is all you need to play it.

Tuning: actually open Db. It's opened C but a half-step up. Db Ab Db F Db F

Intro & Verse:

   Db               Ab(add4)         Bbm             Gb
   |                |                |               |          
 F|-0---0---0---0----0---0---0---0----0---0---0---0---0---0---0---0------------| x2
Db|-0---0---0---0----0---0---0---0----0---0---0---0---0---0---0---0------------|
 F|-12--12--12--12---7---7---7---7----8---8---8---8---5---5---5---5------------|
Db|-0---0---0---0----0---0---0---0----0---0---0---0---0---0---0---0------------|
Ab|-x---x---x---x ---x---x---x---x----x---x---x---x---x---x---x---x------------|
Db|-12--12--12--12---7---7---7---7----9---9---9---9---5---5---5---5------------|

right before the chorus is:
   Ebm7
   |                      
 F|-0-|
Db|-2-|
 F|-1-|
Db|-0-|
Ab|-x-|
Db|-2-|

Chorus:
   Db               Ab(add4)         Bbm             Gb
   |                |                |               |          
 F|-0---0---0---0---0---0---0---0----0---0---0---0---0---0---0---0------------| x4
Db|-0---0---0---0---0---0---0---0----0---0---0---0---0---0---0---0------------|
 F|-0---0---0--=0---3---3---3---3----3---3---3---3---5---5---5---5------------|
Db|-0---0---0---0---2---2---2---2----4---4---4---4---0---0---0---0------------|
Ab|-0---0---0---0 --0---0---0---0----2---2---2---2---x---x---x---x------------|
Db|-0---0---0---0---x---x---x---x----x---x---x---x---5---5---5---5------------|

And that's basically the whole song. Happy playing!