I found the Hall Arrangement of I Am a Child of God for Piano, Organ, Flute and Voice. I am considering it for the program this year (2013).
This arrangement includes all 4 verses of I Am a Child of God. It is written for children's chorus, piano, organ and flute.
All the parts, the full score and an .Mp3 are on that site, just click on the link. :)
Go to the arrangement HERE.