This is how it's done. It's 100% CORRECT!
Cool song!

(Drop D tuning)

Song played w/dist

Main Riff:    ----------------------------------------
----------------------------------------
----------------------------------------
-0----6-0-6-5-0--------0----6-0-6-0-----
-0----6-0-6-5-0--------0----6-0-6-0-----
-0----6-0-6-5-0--------0----6-0-6-0-----

----------------------------------------
----------------------------------------
----------------------------------------
-0----6-0-6-5-0--------0----6-0-6-5-5-5-
-0----6-0-6-5-0--------0----6-0-6-5-5-5-
-0----6-0-6-5-0--------0----6-0-6-5-5-5-

Riff 2:        ----------------------------------------
----------------------------------------
----------------------------------------
-0----6-0-6-5-0--------0----6-0-6-0-----
-0----6-0-6-5-0--------0----6-0-6-0-----
-0----6-0-6-5-0--------0----6-0-6-0-----

Chorus:        
----------------------------------------
----------------------------------------
-4----4------------------------5----5---
-4----4----2----2----0----0----5----5---
-2----2----2----2----0----0----3----3---
-----------2----2----0----0-------------
         Repeat 2 times

----------------------------------------
----------------------------------------
-----------4----4-----------------------
-2----2----4----4----5----5----4----4---
-2----2----2----2----5----5----4----4---
-2----2--------------5----5----4----4---
  Repeat 2 times

___________________________________________________________

Here you can see the riffs in a right order,
so you will get the song correct.

Main Riff, } x2
Riff 2,
Riff 2,
Riff 2,
Chorus,
Main Riff,
Riff 2,
Riff 2,
Chorus, } x2
Chorus. } x2