'Balm in Gilead' not in CD

All SG fans,
This is one of my wife's and my favorite flicks, and she finds herself walking around the house humming this tune. We had a friend plunk it out on our piano last weekend; a different version (melody) is in our hymnal. It's from probably the most powerful scene in the film, IMHO.

Unfortunately, it's not on the CD soundtrack I bought a while back on Amazon, but I just noticed it listed in the soundtrack link on this site. Very disappointing.

Anyone have any insight into this?

Side note: they change the lyrics from "to heal the sin-sick soul" to "to make the wounded whole." Again disappointing, but hardly surprising.