Bass tablature for "Ashamed" by "Muse"

Artist: Muse
Piece: Ashamed
Instrument: Bass
Submitter: leedsmaster
Tab provided by tTabs

Muse
Ashamed
Hulaballoo

After Guitar Intro
Bass Introduction
G-----------------------------------
D-----------------------------------
A---2---------2--------2----------2-
E-2-----2-2-2--------2------2-2-2---

G-----------------------------------
D-----------------------------------
A---3---------3--------3---------3--
E-2-----2-2-2--------2------2-2-2---

Riff 1
G------------------------
D------------------------
A----0---2---2-3---2---0-     x many
E-2----------------------

Riff 2
G-------------------------
D-------------------------
A-------------------------    x3
E-2--2--0-2-2--0--2--0--0-

G------------------------
D------------------------
A----0---2---2-3---2---0-     x1
E-2----------------------

Riff 3
G------------------------
D----------------------2-
A----0---2---2-3---4-----     x3
E-2----------------------

G------------------------
D------2-----------------
A---0-----2--0--3--2-----     x1
E-2-------------------2--

Sorry, the second bit of Riff 3 is wrong.
Trying to work it out.

Riff 4
G------------------------
D------------------------
A------------------------
E-9/0--------9/0---------

G------------------------
D------------------------
A------------------------
E-9/0--------9/0---------

Riff 5 Version 1(Ending Bridge Bit)
G-------------------------
D-----------------9-------
A-9-7-8-9-9-7-8-9---9-7-8-
E-------------------------

or play an octave lower (can't work out which one sounds best)...

Riff 5 Version 2
G-------------------------
D-------------------------
A-----------------2-------
E-2-0-1-2-2-0-1-2---2-0-1-

A Thousand Apologies, this tab is a real mess, please don't rate it, I already know it's poor, however, I will change it when I can work it out exactly. Corrections and comments are very welcome as any help in tabbing this song is appreciated.