intro (before singing):

e--------------------------------------------|
b-------------pmpm------------------pmpm-----|
g------9-9-9-99999-9-9------9-9-9-99999-9-9--|
d------9-9-9-99999-9-9------9-9-9-99999-9-9--|
a------7-7-7-77777-7-7------7-7-7-77777-7-7--|
E--------------------------------------------|

then in comes the singing: (also known as the verse)

e-------------------------------------------------------------------------------------|
b-------------pmpm----------------pmpm------------------------------------------------|
g------9-9-9-99999-9-9------9-9-9-99999-9-9-------------------------------------------|
d------9-9-9-99999-9-9------9-9-9-99999-9-9----7-7-7-77777-7-7----9-9-9-99999-9-9-----|
a------7-7-7-77777-7-7------7-7-7-77777-7-7----7-7-7-77777-7-7----9-9-9-99999-9-9-----|
E----------------------------------------------5-5-5-55555-5-5----7-7-7-77777-7-7-----|

chorus (the "i will walk 500 miles" part) no palm muting!!!!

e-------------------------------------------------------------------------------------|
b-------------------------------------------------------------------------------------|
g-9-9-9-99999-9-9-9-9-9-99999-9-9------------------------------------9-9-9-99999-9-9--|
d-9-9-9-99999-9-9-9-9-9-99999-9-9--7-7-7-77777-7-7---9-9-9-99999-9-9-9-9-9-99999-9-9--|
a-7-7-7-77777-7-7-7-7-7-77777-7-7--7-7-7-77777-7-7---9-9-9-99999-9-9-7-7-7-77777-7-7--|
E----------------------------------5-5-5-55555-5-5---7-7-7-77777-7-7------------------|

just repeat the verses and choruses until towards the end youll hear the guitar go to a 
chord (during the last verse) and that looks like this:

e-------------------------------------------------------------------------------------|
b---------pmpm--------------pmpm------------------------------------------------------|
g---9-9-9-99999-9-9---9-9-9-99999-9-9-------------------------------------6-6-6-6-----|
d---9-9-9-99999-9-9---9-9-9-99999-9-9--7-7-7-77777-7-7---9-9-9-99999-9-9--6-6-6-6-----|
a---7-7-7-77777-7-7---7-7-7-77777-7-7--7-7-7-77777-7-7---9-9-9-99999-9-9--4-4-4-4-----|
E--------------------------------------5-5-5-55555-5-5---7-7-7-77777-7-7--------------|

e-----------------------------------------------------------|
b------------------------------------------------pmpm-------|
g-----------pmpm-----------------pmpm------9-9-9-99999-9-9--|
d----7-7-7-77777-7-7-----9-9-9-99999-9-9---9-9-9-99999-9-9--|
a----7-7-7-77777-7-7-----9-9-9-99999-9-9---7-7-7-77777-7-7--|
E----5-5-5-55555-5-5-----7-7-7-77777-7-7--------------------|

thats it. less than jake does a pretty good cover of it, check it out!

lyrics:
I'm Gonna Be (500 Miles)
When I wake up yeah I know I'm gonna be
I'm gonna be the man who wakes up next to you
When I go out yeah I know I'm gonna be
I'm gonna be the man who goes along with you

If I get drunk yes I know I'm gonna be
I'm gonna be the man who gets drunk next to you
And if I haver yeah I know I'm gonna be
I'm gonna be the man who's havering to you

But I would walk 500 miles
And I would walk 500 more
Just to be the man who walked 1,000 miles
To fall down at your door

When I'm working yes I know I'm gonna be
I'm gonna be the man who's working hard for you
And when the money comes in for the work I'll do
I'll pass almost every penny on to you

When I come home yeah I know I'm gonna be
I'm gonna be the man who comes back home to you
And if I grow old well I know I'm gonna be
I'm gonna be the man who's growing old with you

When I'm lonely yes I know I'm gonna be
I'm gonna be the man whose lonely without you
When I'm dreaming yes I know I'm gonna dream
Dream about the time when I'm with you.