If you've ever seen him live or on dvd he uses a capo on the third fret, it makes the 
chord forms so much easier.... hey, if it's good enough for the man himself it's good 
enough for me:

       A        D  G  D                 A    D      G  D
When I was a boy,     I thought it just came to you

            A       D          G           D            A      D  G  D
But I never could tell what,s mine, so it didn't matter anyway

        A         D    G  D
My only pride and joy,      etc, for the verse parts, then:

E                                       G                  D       A
I always thought our house was haunted,'cause nobody said 'boo' to me

E                              G                    D
I never did get what I wanted, but now I get what I need