This is probally the first thing I got by ear and I think it sounds okay....

**********************        RIFF I        *******************************
e|---10--8s7--8--7----|-10--15---12p10---12--10----|---10--8s7--8--7------|
B|-8----------------8-|-------------------------12-|-8------------------8-|
G|--------------------|----------------------------|----------------------|
D|--------------------|----------------------------|----------------------|
A|--------------------|----------------------------|----------------------|
E|--------------------|----------------------------|----------------------|

Play that during intro and after 2nd verse..... You'll know when you listen to song when 
comes in.....


**********************        RIFF II       *******************************
e|-10-15-12p10-15-12p10-12-10----|---------------------------------|
B|-----------------------------12|-12-13-12-13-12-13-12-10-8-10-8--|
G|-------------------------------|--------------------------------7|
D|-------------------------------|---------------------------------|
A|-------------------------------|---------------------------------|
E|-------------------------------|---------------------------------|

e|-10-15-12p10-15-12p10-12-10----|     <<<<<< Part of the above riff
B|-----------------------------12|            just ran out of space
G|-------------------------------|
D|-------------------------------|
A|-------------------------------|
E|-------------------------------|

Play that after 1st verse.....