From Dave Curtis (<-- this man is great!!! all thanks to him)

Riff Played for whole song
e--------------------7- 
B----------------7-7-5- 
G---6-6-----6----7-7-7- 
D---7-7---7------7-7--- 
A---0-0-0------5------- 
E-5-------------------- x2 

then 
e----------------------------------------------7- 
B----------------9-9----------2-2----------7-7-5- 
G---6-6-----6----9---9---9----2---2---2----7-7-7- 
D---7-7---7------9-----9------4-----4------7-7--- 
A---0-0-0------7-7------------4----------5------- 
E-5-------------------------2--------------------