Chords to traditional blues song Fatal Flower Garden?

Can someone help me figure out the guitar chords to play for this song? An example of the melody is here:
http://sniff.numachi.com/~rickheit/dtrad...

And a video rendition of the song is here: http://youtube.com/watch?v=IBCKI-9zIi0

| I | V | V | I |

Repeat ad naseum

please try

www.e-chords.com
www.ultimate-guitar.com

hope these helps