this is what i got fer the tab
i use drop d tuning but it's played in a on the album iowa 
so here it is

g-------------------------------------------------------
d-------------------------------------------------------
a-------------------------------------------------------
d--3-333-333-333/7-7-777777\0h2-2-222-222-222/5-5-555555

then u play the original heavy part from the old gently only faster.
fast riff:
g-----------------
d-----------------
a-3-333-/6\4-7-6-4
d-----------------

then there is a little fill between the last 2 verses
g--------
d--------
a-3-333/6
e--------

this is only repeat6 or 7 times then back to the fast riff