i`s sooo easy! ^^,

bass starts at 00:48
G[---------]
D[---------]
A[-5-3-1---]
E[-------3-] x3  

at 01:18 
G[-------]
D[-------]
A[---0---]
E[-1---3-] x2


and pretty much like this the rest of the song^^,

but it can be played even easier (the first part) like:
G[-------]
D[-------]
A[-5-3---]
E[-----3-]