If indeed other religions do refer to Jesus, how is he represented, and what is the context for this representation (eg: developed in the 10th C due to...)?
Much appreciated.
On the first question: Yes! Jesus is a prophet in Islam, but not the son of God and not divine. In Islam (and its Abrahamic cousin, Judaism), the only god is God, and this God is understood not to take the form of a person (as most trinitarian Christians believe). This different understanding of God is a major difference between most Jews and Muslims on one side, and most Christians on the other. (At the risk of making this slightly more confusing, Jesus is understood to be the Messiah by both Muslims and Christians, but not Jews.)
Jesus is quite important in Islam. He is viewed as a prophet, which already makes him special. You can find stories about him (including things like the virgin birth) in the Quran. Jesus' mother, Mary, is important as well. She's mentioned more times by name in the Quran than in the entire New Testament, and spoken about in similarly important ways. For example, Mary learns that God has "chosen you and purified you and chosen you above the women of the worlds" (Quran 3:42).
If you're looking for a readable book in this area, here are two suggestions:
I realize you asked this question a few weeks ago, but I wanted to answer it in case you were still interested. Hope this helps.