Tony -

There is no basis to the claims that the DSS contain foundational material for Christianity. In fact, two gentlemen who were intimately involved in the DSS research, J. T. Milik and Jean Starcky, were Catholic Priests who left the priesthood once they saw for themselves that those claims were false. In his book, "An Introduction to the Complete Dead Sea Scrolls", the world famous DSS researcher and historian, Geza Vermes, specifically addresses this false claim on pp. 182-184. Prof. Lawrence Schiffman also addresses this "Christianization of the Scrolls" in his book, "Reclaiming the Dead Sea Scrolls". This appears in several sections of the book, particularly on pp. 16-19.

As to Psalms 22, I have an essay in which I deal directly with the false claim that the DSS fragment contains the same phrase as that which appears in most Christian translations.

UriYosef