Studio version-Dude Ranch
Pretty easy really
INTRO:
e------------------------------------------------------------------------------
B------------------------------------------------------------------------------
G------------------------------------------------------------------------------
D---------0--0--2--------0--0---2---------------0----0----2-------------2---2--0
A--3-3--------------------------------0---0------------------------------------- x4
E------------------3---3---------------------------------------1----1------------
2nd Riff
e-------------------------------------------------
B-------------------------------------------------
G---5xxx------------------------------------------
D---5xxx---5xxx-----7xxx-----3xxx-----------------   x2
A---3xxx---5xxx-----7xxx-----3xxx-----------------
E----------3xxx-----5xxx-----1xxx-----------------
(x=Palm muting)

then same as above but strum without the pm

Intro x2

2nd riff

2nd riff without Pm

2nd riff without palm muting (for 8 beats instead of 4)

Intro x2

Riff 2

Riff2 without PM

Riff 2 without PM (8 beats) 

Solo:
e--0-----!---0----!--0------!----0-----
b----1---!--------!----1----!--3---1---
g------0-!-3---1--!-------0-!----------
or courtesy of ikikdababy:
----------------------------
5---3---5--3--5----3--5----
-5---4---5-------5-------5
--5---5---5----------------
---------------------------
---------------------------

Intro x4

Thanx Guitar Dude