Nothing wrong with the Version 3 tab except you can play it a little easier but still 
the same notes in a scale at the beginning of the fretboard...

Beginning

e||-------------------------||
B||-------------------------||
G||-------------------------||
D||-------------------------||
A||---------0-4-2-0-4-2-0-4-||
E||2~~~~~~~-----------------||


Riff

e||------------------------------------------------------------||
B||------------------------------------------------------------||
G||-----------2------------------------------------------------||
D||--------2----4-2-4----2-------------------------------------||
A||--------------------------4---4-2-4---4-4-2-0---------------||
E||-2-2-------------------------------------------2--2---------||


e||------------------------------------------------------------||
B||------------------------------------------------------------||
G||------------------------------------------------------------||
D||------------------------------------------------------------||
A||--4--2------------------------------------------------------||
E||-----------5--2-5-2-----------------------------------------||

That's it. First tab :) Rate it if you would please