Love this song and thought i'd share the intro i learnt, hope you like it! :-)


E|--------------------------------------------------------|
B|--------------------------------------------------------|
G|--------------------------------------------------------|
D|----------------3-3-3-2-0----2-2-2-0--------------------|
A|-3-3-3h5-7-5-3-----------------------3--5-5-5h7-5-3-2-3-|
E|--------------------------------------------------------|

Also, the chords C,F,Am,G in that order all of the way through are perfect and this 
works realy well before the chords.

if you want to play the whole chorus riff i think it is the riff as above with the notes 
after. (this is not part of the intro)

E|--------------------------------------------------------|
B|--------------------------------------------------------|
G|--------------------------------------------------------|
D|--------------------------------------------------------|
A|-3-5-3-2-3----3-5-3-2-3----3-5-3-2-3----3-5-3-2-3-------|
E|--------------------------------------------------------|

Enjoy!