I don't know if you still need them, but the way that I play it is:
I-V7-I
I-V7-I
I-V7-VI7-V7-I

I have heard him playing it in Am, and I suspect that he puts a capo on the fifth fret to do this. So in that case, you would put the capo on the 5th and then play in Em. Which would make the chords:
Em                           B7         Em
Ever heard a story bout willie the weeper
Em                            B7       Em
Willie the weeper was a chimney sweeper
Em
He had the habit, boys he had it bad
B7                               C7    B7    Em
Listen while I tell you bout a dream he had

That is all from memory, so I can't guarantee it's perfect, but It should get you pretty close. I also recommend trying different capo positions to suit your voice. Good Luck