these chords are for the main riff  
at the begin and also throught out the whole song. 
 
 
      E     D      A 
E|----------------------------| 
B|----------------------------| 
G|----------------------------| 
D|----9---7-7-7---------------| 
A|----7---5-5-5--7-7-7--------| 
E|---------------5-5-5--------| 
then after you play that theres a little lick 
 
E|----3--0-------------| 
B|---------3p0---------| 
G|---------------2p0---| 
D|---------------------| 
A|---------------------| 
E|---------------------| 
 
    E     D      A 
E|----------------------------| 
B|----------------------------| 
G|----------------------------| 
D|----9---7-7-7---------------| 
A|----7---5-5-5--7-7-7--------| 
E|---------------5-5-5--------| 
 
then theres another lick after that or i guess u can call  
it the bridge. 
 
    B  G# B  A B   A#  B 
E|-----------------------------| 
B|-----------------------------| 
G|-----------------------------| 
D|-----------------------------| 
A|--9--6--9--7--9--8---9-------| 
E|--7--4--7--5--7--6---7-------| 
 
then u just keep playin this over and over and until u reach the Chorus.