Regular tuning (E A D G B e)
pm = palm mute
~~~~=tremolo

Harris

MAIN RIFF 1 Intro/verse (guitars 1and2)
e------------------------------
B------------------------------
G------------------------------
D------------------------------
A--4-4-5-5--5-5--7-7--7--------
E--2-2-3-3--3-3--5-5--5--------x4

Then while guitar 1 is playing guitar 2 plays this:
RIFF2
e------------------------------
B------------------------------
G------------------------------
D---7~~-5~~-8~~-7~~-7~~--------
A------------------------------
E------------------------------

Then like half the verse u palm mute main riff 1
RIFF3
e------------------------------
B------------------------------
G------------------------------
D------------------------------
A--4-4-5-5--5-5--7-7--7--------
E--2-2-3-3--3-3--5-5--5--------x2
   pm..................
then do main riff 1 again  

Then go into the chorus which is this:
RIFF4
e--------------------------------------------------------
B--------------------------------------------------------
G--------------------------------------------------------
D--------------------------------------------------------
A-4-4-0-4-4-4-0-4-4-4-7--7-7--4-4-0-4-4-4-0-4-4-4-7--7-7-
E-2-2-0-2-2-2-0-2-2-2-5--5-5--2-2-0-2-2-2-0-2-2-2-5--5-5-
  pm.................         pm.................  
e----------------------------------------------------
B----------------------------------------------------
G----------------------------------------------------
D-----------------------------7-7-7-7-7--------------
A-4-4-0-4-4-4-0-4-4-4-7--7-7--5-5-5-5-5---5-5-5-5-5--
E-2-2-0-2-2-2-0-2-2-2-5--5-5--------------3-3-3-3-3--x2
  pm.................
After the chorus play this while guitar 2 plays riff2 
RIFF 5
e--------------------------
B--------------------------
G--------------------------
D--------------------------
A---5-5-5-5-5-5-5-5--------
E---3-3-3-3-3-3-3-3--------
    pm.............
Play the verse again 
then the chorus
then play the main riff 1 on the A string while palm muting it 
with no gain
then play riff 1 back on the E string then play riff 5 and thats
the end.