Song goes like this:

Intro:
Twice with picking      G5 D C
Twice just power chords G5 D C

Verse 1 (with picking)
G5         D               Am
Mamma take this badge from me
G5         D         C
I can't use it anymore
G5                D             Am
It's getting dark, too dark to see
G5             D                       C
Feels like I'm knockin' on heaven's door

Chorus (if you're really concerned about playing it like the
        CD, listen to it for rhythm.  But this song has been done by so
        many people so differently that you might as well give it your own
        feel.)
G5            D5                     C5
Knock, knock, knockin' on heaven's door,
C5             
Hey, hey, hey, hey, yeah
G5            D5                     C5
Knock, knock, knockin' on heaven's door,
C5
(no lyrics)
G5                 D5                     C5
Ooh, knock, knock, knockin' on heaven's door
C5
Ooh yeah
G5            D5                     C5
Knock, knock, knockin' on heaven's door
C5
Hey, hey, hey, hey, yeah

First Guitar Solo
G                  D          C
------------------------------------------------------
----^^---P---------15--^------~~~~~~~~~~~~------------
-12-14-14-12-14-------14-12-12-------------------12---
------------------------------------------13/14-------
------------------------------------------------------
------------------------------------------------------
G                     D           C        
---------------P------------P--------P------------------15----
15/17---15---13-12-13/15--13-12---13--12----------12-13----13-
-------------------------------------------~~~~~~~------------
-----------------------------------------14-------------------
--------------------------------------------------------------
--------------------------------------------------------------
G              ^^  D   ^^  ^^  C
--~~~-------15-17--17--17--17--15-----------------------------
12---15/17----------------------------------------------------
--------------------------------------------------------------
--------------------------------------------------------------
--------------------------------------------------------------
--------------------------------------------------------------
G ^^              ^^ D             C
--20-20-19-20--19-20--20-20-20---~~~~~----------------------------------
-------P-----------------------17------^^----^^-------------------------
---------------------------------------19-19-19-19-^-----^--------------
---------------------------------------------------19-19-19-19----------
---------------------------------------------------------------17--17---
------------------------------------------------------------------------