This is definetly right, taken straight from the Slipknot guitar book

Drop D tuning, down 1 1/2 steps

1 =C#
2 =G#
3 =E
4 =B
5 =F#
6 =B

Intro

Guitar 1
C#--------------------
G#--------------------
E---4-4-4-4-4-4-4-5---
B---0-0-0-0-0-0-0-3--- x7
F#--------------------
B---------------------

Guitar 2 (with guitar 1 playing riff above)
C#---------------------
G#---------------------
E----------------------
B---------------------- x8 (8th timw with a growl)
F#---------------------
B---0-0-0-0-1-1-1-1-0--

C#-----------------------------------
G#-----------------------------------
E------------------------------------
B------------------------------------ x4
F#---7-7-7-7-7-7-7-7-3-3-3-3-2-2-2-2-
B----7-7-7-7-7-7-7-7-3-3-3-3-2-2-2-2-
 Meet the man that made me, Greet the can I came from.
Oh the f***ing sacred heart of Jesus. etc.


C#-----------------------------------
G#-----------------------------------
E------------------------------------
B------------------------------------ x4
F#-----------------------------------
B----7-7-7-7-7-7-7-7-3-3-3-3-2-2-2-2-
   I AM THE GREAT BIG MOUTH!!!!


C#---------------------------------------------------------------
G#---------------------------------------------------------------
E----------------------------------------------------------------
B--------------------------------------------------------------4- etc 
F#---0--------------3------3------3-5/6------------------5--3----
B----0--0-0-0-0-0-0-3-p0-0-3-p1-0-3-5/6-0-0-0-0-0-0-0-3----------
   Good riddance! though i'm sad to say, I didnt mean to kill you...

Outro (same as intro with lots of effects and shouting etc.
Enjoy! It's easy to play, even if it doesnt look it