I have found that purchased choir arrangements usually don't work in a school environment. It seems arrangers quite often aim to be clever and the result just doesn't sound effective. I just notated an arrangement I found on youtube and it works well because there's no 'funny stuff' in it, it's just the song sung in two part harmony. http://www.youtube.com/watch?v=KlfzbmPS3n4 If anyone wants it let me know and I can mail to you. Even better if you have something you can give me in return.