this song is very easy.
sound: use a clean tone with a bit of gain. when they play it live he plays a part in 
end of the song were he's using af delay tone with gain.
tuning: drop D.

e---------------------------------------------|
b---------------------------------------------|
g---------------------------------------------|
d-9-9-9-9---5-5-5-5---2-2-2-2-2-2-------------| x2
a--------7-7-------3-3-----------2-2-2-2-2-2--|
d---------------------------------------------|

e-----------------|
b-----------------|
g-----------------| x4
d-9--5--2---------|
a--7--3--2--2--2--|
d-----------------|

e---------------------------------------------|
b---------------------------------------------|
g---------------------------------------------|
d-9-9-9-9---5-5-5-5---2-2-2-2-2-2-------------| x4
a--------7-7-------3-3-----------2-2-2-2-2-2--|
d---------------------------------------------|

he only plays this last part live. he makes some small varitions, but this is what he 
most of the time.
e----------------------------------|
b----------------------------------|
g----------------------------------|
d----------------------------------|
a-6-6--6-6-6-6--6-6-s-3-3--3-3-3-3-|
d-6-6--6-6-6-6--6-6-s-3-3--3-3-3-3-|