Are any of the Church's you mentioned Church's of God? I'm not talking about the (Church Of God) denomination. For instance, as far as I know the UCC Church which you mentioned allows for homosexuals to become clergy, right? In my book that isn't a real Church any longer. It's a pseudo Church. I'm not surprised such denominations would use that or any other occult material.Actually there are lots of Christian themes in the book...
many Churches will use the book with teenagers...
http://www.connieneal.com/product-pages/the-gospel-according-to-harry-potter.htm
http://www.arcamax.com/unitedchurchofchrist
http://www.mtv.com/news/articles/1572107/20071017/index.jhtml
http://www.timesonline.co.uk/tol/comment/faith/article2092321.ece
http://www.thegoodbookstall.org.uk/section.php?52