(intro pt 1)
G----------|
D-20/8-----|
A----------|
E-----6----|

(intro pt 2)
(I think the bass was tuned down a half step, so this is the part an octave up)

G---------------|
D-8--8----------|
A-------6-6-8---|
E---------------|

(main riff)

G--------------------------------------------------|
D---8-----------8-------8--------------------------|
A------8h10p8s6------------8h10p8s6--6--6h8--------|
E-6-------------------6----------------------------|