First, you have to be sure you tune down a half step. Eb, Ab, Db, Gb.
This is how I've always played it and it sounds right to me when played with the album version:
Intro:
---------------------------------------------------5-5--
--0-0--------0-0-3-0-3--5-5-5-5--3-3-3--2--------
------0-2-3----------------------------------------
---------------------------------------------------
Main riff:
---------------------------------------------------
--0-0--------0-0-3-0-3--5-5-5-5--3-3-3--2-3-2---
------0-2-3----------------------------------------
---------------------------------------------------
---------------------------------------------------
--0-0--------0-0-3-0-3--5-5-5-5--3-3-3--2-3-2----
------0-2-3----------------------------------------
---------------------------------------------------
(Repeat)
Chorus:
---------------------------------------------------
--3-3-3-0-7---3-3-3-0-7---5-5-5-0-7---5-5-5-0-7--
---------------------------------------------------
---------------------------------------------------
(Repeat)
Edit:This is really hard to make the staff look right... sorry.