This is not exactly how the Indigo Girls play this song. However it still sounds great. 
I'm 100% positive this is right.

CAN PLAY WITH NO CAPO OR WITH A CAPO ON THE 3RD FRET

|-------3-2-0------------------------------------------------|
|-0-1-3------3-[PAUSE THEN JUMP RIGHT IN]-0-1-3-3-1-0-1-0----|
|--------------------------------------------------------0-2-| [LET LAST NOTE RING
|------------------------------------------------------------|    BEFOR JUMPING INTO
|------------------------------------------------------------|      THE SECOND PART]
|------------------------------------------------------------|

|-------3-2-0--------------------------------|
|-0-1-3------3-[PAUSE]-0-1-3-3-1-0-1-3-5-7---|        [PLAY THE LAST FOUR NOTE SLOWER
|--------------------------------------------|         THAN THE REST OF INTRO; GIVE THE
|--------------------------------------------|           ENDING OF THE INTRO A CLIMEMAX]
|--------------------------------------------|
|--------------------------------------------|

NOW GO FIND A CORD PROGRESSION FOR THE REST OF THE SONG :> HOPE THIS HELPED!!!