Wow. This is a fascinating thread. I've been researching the history of this hymn myself, and it's interesting to come back a few months later and find some entirely new information. (Can anyone give me some print sources to find the Jamaican and English versions?)

Oh, and in case anyone wants a parody, here's one involving the history of the Babylon Project from the "Babylon 5" TV series...
http://www.mewsic.com/Ed/music/original/BabylonIsFallen.html