im not sure if this is 100% correct but i think its easier then the other tabs on the sight.  enjoy!

main riff:
g----------------------------------------------------------------------------
d--5--7--7---5--7--7---5--7--7---5--3--3---5--3--3---5--3--3-----------------
a----------------------------------------------------------------------------
E----------------------------------------------------------------------------


chorus:
g------------------------
d------------------------
a--3333------1111--3333--
E-------1111-------------