i might be wrong
taken from live version
tabbed by cleanyoungbob

main riff, (with occasional variations in rhythm)

i might be wrong etc

d---0-----0---0---0-
a-------------------
d-0---3/5---3---3---  <---this is changed to 2 occasionally

sometimes 3/5 is played 3/4, probably accidental, but worth noting

could've sworn etc

d---0---0---0----
a----------------
d-8-\-3---3---2--

lets go down etc


im pretty sure this is slightly different in the studio version,

g----3---3---2---2---5---5-------------------------------
d----------------------------0---0---0---0---0---0---0---
a--------------------------------------------------------
d--5---5---3---3---7---7---5---3---5---7---5---3---5---7-

g----10--10---9----9---2---2---------------------------------
d------------------------------0---0---0---0---0---0---0---0-
a------------------------------------------------------------
d--12--12--10---10---3---3---5---7---5---3---5---7---5---3---

i believe in the studio version, however, it is more like this -


g----3---3---2---2---5---5---3---3---3---3---3---3---3---3-
d----------------------------------------------------------
a----------------------------------------------------------
d--5---5---3---3---7---7---5--0h3--5---3---5---3---5---3---

g----10--10---9----9---2---2---3---3---3---3---3---3---3---3---3---3-
d--------------------------------------------------------------------
a--------------------------------------------------------------------
d--12--12--10---10---3---3---5--0h3--5---3---5---3---5---3---5---3---

variation on main riff

g-------------0---2-------------5---2-
d---0-----0-----------0-----0---------
a-------------------------------------
d-0---3/5---3---3---0---3/5---3---3---

outro

(i dont remember there being much difference between live and studio 
versions here, other than
structure - Dm, C, Dm, C, Bb, Am, Gm instead of Dm, C, Bb, Am, Gm

e
b--------6-----6-------5---------3-----3-------1
g------7---------7-------5-----3---------3-------2-------3---------3
d----7-------7-------5-------3-------3-------2---------5---5-----5---5
a--5-------5-------3-------1-------1-------0---------5---------5
d--------------------------------------------------5---------5

e
b--------6-----6-------5---------3-----3-------1
g------7---------7-------5-----3---------3-------2---
d----7-------7-------5-------3-------3-------2-------
a--5-------5-------3-------1-------1-------0---------
d--------------------------------------------------

d---0---0---0---0---0---0---0---0---0---0---0---0---0---0---0---0-
a-----------------------------------------------------------------
d-5---7---5---3---5---7---5---3---3---5---3---2---3---5---3---2---

play main riff until end.