hey i checked out the other tab for this and i modified it so that 
you dont need to detune your guitar.

here goes:

first verse:

   E     F#minor7

   E     F#minor7

then the riff comes afterwards:

e)-----------------------------------
B)-----------------------------------
G)-----------------------------------
D)---2-2-6-2---2-6-2---2-6-2---2-6-2-
A)-----------5-------4-------2-------  X 2 
E)-----------------------------------]

    F#minor7

e)-----------------------------------
B)-----------------------------------
G)-----------------------------------
D)---2-2-6-2---2-6-2---2-6-2---2-6-2-
A)-----------5-------4-------2-------  X 2 
E)-----------------------------------

    F#   G#minor7

    F#   G#minor7

e)-----------------------------------
B)-----------------------------------
G)-----------------------------------
D)---4-4-8-4---4-8-4---4-8-4---4-8-4-
A)-----------7-------6-------4-------  X 2 
E)-----------------------------------   

      G#minor7

e)-----------------------------------
B)-----------------------------------
G)-----------------------------------
D)---4-4-8-4---4-8-4---4-8-4---4-8-4-
A)-----------7-------6-------4-------  X 2 
E)-----------------------------------   

u can figure the rest out from the other tab that should be enough