Watch the No, Not One - 6 online guitar lesson by Richard Kiser from Gospel Fingerstyle Guitar
This is simply an alternating bass scale using and the right hand will be as busy as the left. It starts with 2nd string on 3rd fret and 5th string on 3rd fret. Alternate the 5th and 4th strings as the 5th string decends from the 3rd to the 2nd to the 1st fret and then open "A" string. The last line of the song is just a two string harmony starting with the 2nd and 4th strings on 2nd fret "a" chord, and ascending all the way up the scale to resolve in "D" position on the 10th fret. This can be a very fun and entertaining song to perform. Just practice to make it smooth. Good luck!!