intro (played by bass, I think)

E|--------------------------------------|
B|--------------------------------------|
G|--------------------------------------|
D|--------------------------------------|
A|--0-0-0-5-5-5-5-5-7-7-7-7-5-5-5-5-555-|
E|--------------------------------------|

Main run

    A     D         E       D
E|--------------------------------------|
B|--------------------------------------|
G|--2-2-2-7-7-7-7-7-9-9-9-9-7-7-7-7-777-|
D|--2-2-2-7-7-7-7-7-9-9-9-9-7-7-7-7-777-|
A|--0-0-0-5-5-5-5-5-7-7-7-7-5-5-5-5-555-|
E|--------------------------------------|

Chorus

E|--------5-5-5-5-5-7-7-7-7-5-5-5-5-555-|
B|--------7-7-7-7-7-9-9-9-9-7-7-7-7-777-|
G|--6-6-6-7-7-7-7-7-9-9-9-9-7-7-7-7-777-|
D|--7-7-7-7-7-7-7-7-9-9-9-9-7-7-7-7-777-|
A|--7-7-7-5-5-5-5-5-7-7-7-7-5-5-5-5-555-|
E|--5-5-5-------------------------------|

if you want to solo, its in the key of A (5th fret E string)

and I would use the blues scale (the essential in rock guitar!):

E|--------------------------5-8-|
B|----------------------5-8-----|
G|----------------5-7-8---------|
D|------------5-7---------------|
A|------5-6-7-------------------|
E|--5-8-------------------------|

You could palm mute the main run for the verse, if needs be.

oh, and theres a crappy lil' riff that you could add, (I wouldn't, but)

E|---------------------------------------|
B|---------------------------------------|
G|---------------------------------------|
D|--------------------14-14-14-14-14-12~-|
A|----------5-5-5-5-5--------------------|
E|--5-5-5-5------------------------------|