Wha'ts up everyone I did this basically transfurring it from the 4-String version.  So here it is for all you 5-String players.

Riff 1
G]----------------
D]----------------
A]----------------
E]----------------
B]-4---12--7-----

Riff 2
G]------------------------------------
D]------------------------------------
A]------------------------------------
E]-------------------------2-2-2-2-2-2
B]-4-4-4-4-4-4--7-7-7-7-7-7-----------

Riff 3
G]------------------------------------
D]------------------------------------
A]------------------------------------
E]------------------------------------
B]-4-4-4-4-7-7-7-7-8-8-8-8-12-12-12-12

I think this is how it goes: 

RIFF 1 X 4 

RIFF 2 X 4 

RIFF 1 X 6 

RIFF 2 X 4 

RIFF 1 X 6 

RIFF 2 X 4 

RIFF 3 X 4 

RIFF 2 X 4 

RIFF 3 X 8