I'm 99% sure that this is the correct bass line, the posted guitar tab seemed to
be right, but the bass tabs are so off, I decided to post the correct way to play
it.  I think that the problem that everybody has ran into is cause the notes are
so low and you don't hear the fundamental note when listening to the song through
most speakers, well at least that what caused me such a long time.  Most people
had the riff going along with the guitar part, but the bass is doing its own
simple little riff, and here it is:

G--------------------------------------------/
D--------------------------------------------/
A--------------------------------------------/
E--------------------------------------------/
B------5-2--7-5--0-2-------------------------/

And repeat for a little over 3 1/2 minutes.