That other tab sounded a bit wrong to me, here's my guess

G----------------------------------------|
D------------------------------------12--|
A-------------------------------10-------|
E--1212--12--1212--12--1212--12---10-----|
                                ^^^^^^^^
repeat lots and sometimes leave out the underlined bit

other riff sounds more like this to me

G---------------------------------------|
D-------12----------14------------------|
A---------------------------------------|
E-10/12---12--10/12---12----------------|