There are no church trappings or conflicts with the Bible, because they work directly with the Gods and Goddesses; church dogma does not have a place in there ritual structure. Concepts such as the original sin, salvation, baptism, heaven, hell, and satan have no place in Trinitarian Wicca. There is nothing fundamental about Christian or Trinitarian Wiccans.
As for Christian Wicca, the term Christian is used as a modifier for the pantheon observed in this particular practice of Wicca, much like the concept of Celtic Wicca. They as Wiccan practitioners focused on a Goddess-inclusive Christian trinity.
Christian Wicca was more descriptive, Trinitarian Wicca is far more accurate and far less controversial but it is hard to express the concepts of Trinitarian Wicca without using the term Christian in the definition.
Books You Might Enjoy:
Tupman Tracy Ward - Theatre Magick Aleister Crowley And Rites Of Eleusis
Samuel Sharpe - Egyptian Mythology And Egyptian Christianity
Brian Swimme On Chardin - The Divinization Of The Cosmos
Jaroslav Nemec - Witchcraft And Medicine
Lady Sabrina - Exploring Wicca The Beliefs Rites And Rituals Of The Wiccan Religion