This this the intro:

E-----------------------------------------------------------|
B-----------------------------------------------------------|
G-----------------------------------------------------------|
D---------------------------------------3---3---------------|
A----3--1h3--1h3--1h3--1h3--1----1b---5---5---5-------------|
E-----------------------------3-------------------6---3-----|

This is the main riff and is played through out the song.

E-----------------------------------------|
B-----------------------------------------|
G-----------------------------------------|
D---------------3h5~~~~~--------3---------|
A-------------------------3/5------3/5/3--|
E-------6b---3----------------------------|

E-----------------------------------------|
B-----------------------------------------|
G-----------------------------------------|
D---------------3h5~~~~~--------3---------|
A-------------------------3/5------3/5----|
E-------6b---3--------------------------3-|

this is simple to play, but contains a fair amount of bends, hammer-ons and slides. 
is perfect for novices, it also has a slow tempo which is even better