Key:
h=hammer on
p=pull off
b=bend

Intro(Bob Mayo): D (part1) F (part2) F (part2) C D (part3)

Intro(Peter Frampton):

e|-8---10h11p10------|
B|---10---------10-8-|
G|-------------------|(part1)
D|-------------------|(1x)
A|-------------------|
E|-------------------|

e|-------------------|
B|-------------------|
G|-10-7-------10-7---|(part2)
D|------8h9p8--------|(2x)
A|-------------------|
E|-------------------|
                
e|-------------------|           
B|-------------------|           
G|----7--------------|(part3)          
D|-10---10--7--10----|(1x)          
A|-------------------|           
E|-------------------|  

Here's the intro, I'm not sure if it's 100% right,
but it sounds good when you play it.

Progression of the song: Peter Frampton and Bob Mayo
play the same thing

A
Woke up this morning
E
with a wine glass in my hand
A
blah blah, blah blah, why the hell did I die?
A
must have been a dream
E
I don't believe where I've been
A
come on, let's do it again
D       F
Do you, you
C           D
feel like I do...

I think it pretty much repeats that progression through the rest
of the song.  
Sorry, I can't remember all the lyrics from the song.