Listen carefully to where the bass comes in in this song. This is what i got.

 ~~ = hold note

Note: bass starts at (0:09)

Main Riff (repeat the main riff a bunch of times through out song)

G]---------------------------|
D]-----------3----------5----|
A]---5-5-5-5----5-5-5-5------|   x2
E]---------------------------|

G]--------------------------------|
D]-----------5---------7----------|
A]--7-7-7-7----7-7-7-7------------|     x2
E]--------------------------------|

stop playing at (0:43) and (1:14)
play the main riff at (0:55)

at (1:21) play:

G]---------|
D]---------|    x8 (on the 8th time, fade the "3rd" note)
A]--5-3~~--|
E]---------|