E-----------
 B-----------
 G--4-4-4-999  Repeat 3 times
 D-2-2-2-----
 A-----------
 E-----------

 E----------------------
 B----------------------
 G----------------------
 D--6-6-6-6--7-7--4-4-44      Repeat 4 times
 A-4-4-4-4--9-9--2-2-2--
 E----------------------

 E-----------
 B-----------
 G--4-4-4-999
 D-2-2-2-----               Repeat 2 times
 A-----------
 E-----------

Those are pretty much the riffs, just repeated at different intervals throughout the song.  This is my first tab, please rate.