The easiest way to play this song is to tune a down half step (one fret) i.e:

d#
A#
F#
C#
G#
d#

Then you can play E G A all the way through (technically, due to the re-tune they're D# 
F# and G#)

     d#    F#    G#   or, if you prefer       d#    
F#    G#
d# --0-- --3-- --5--                     d# --0-- --3-- --0--
A# --0-- --3-- --5--                     A# --0-- --3-- --2--
F# --1-- --4-- --6--                     F# --1-- --0-- --2--
C# --2-- --5-- --7--                     C# --2-- --0-- --2--
G# --2-- --5-- --7--                     G# --2-- --2-- --0--
D# --0-- --3-- --5--                     D# --0-- --3-- --x--




You can play it without tuning down, but it won't be in the same key as the original, so 
you can't play along :(

Magic!