I play it slightly different. Opening riff is the same but riff into verse I use:
E -----------------
B -----------------
G -------5-7-------
D ---7-7----------- (or could use 2 2; 0 2 up a string)
A -----------------
E -----------------
For the verses I use the riff:
               PM........|   PM...........|
--------------------------------------------
--------------------------------------------
----2-----2----4-4-4-4-2-----4---4-4-4-4-2--
--------------------------------------------
--0-----4-----------------------------------
--------------------------------------------
2nd part of verse
-------------------------
-------------------------
--6-6---7-7---8-8---7-7--
--7-7---7-7---7-7---7-7-- } repeat
--0-0---0-0---0-0---0-0--
-------------------------
3rd part of verse
  PM.....|    PM..........|    PM..|
-------------------------------------
----------5-5--------------5-5-------
------4-4-----4-4------3-3-----3-3---
--0-0--------------0-0--------------- } repeat
-------------------------------------
-------------------------------------

-------------------------
--9-9-9-7---9---9-9-9-7--
--9-9-9-7---9---9-9-9-7--
--9-9-9-7---9---9-9-9-7--
-------------------------
-------------------------
chorus
 lightly palm muted
-----------------------------------------------------
-----------------------------------------------------
----2---2-2------2---2-2------4---4-4------2---2-2---
--2---2-----2-/3---3-----3-/5---5-----5-/3---3-----3-
-----------------------------------------------------
-----------------------------------------------------

------------------------------------------------------
------------------------------------------------------
----1---1-1------2---2-2------1---1-1------2------5-7-
--2---2-----2--2---2-----2--2---2-----2--2----7-7-----
------------------------------------------------------
------------------------------------------------------
I usually just bend 17 on the B string followed by sliding
the pick up and down the A and D strings for the solo break
back into the intro riff.
There is an extra 999/777 riff before the final chorus.
The outro riff I just play the chorus chords as full chords
----------------------------------
----------------------------------
--2---------2---------4---------2-
--2---------3---------5---------3- } repeat and fade
--0---------0---------0---------0-
----------------------------------
This was from memory so I might have screwed a couple of
numbers up. Hope this helps.