I realize this is a rather broad question. I'm looking for a broad answer as well, with just a general overview of the relevant material. I will likely ask more specific followup questions.
As Islam was founded several hundred years after Christianity, and is also an Abrahamic religion, and Islam, for example, views Jesus as a prophet of Allah, whose life is most well known through the Christian New Testament, I am left wondering how Islam regards these religious texts.
What is the relationship between Islam and the Christian New Testament? What authority, if any, does it have, and how should it be read and understood by a Muslim?