I will upload everything I have so far for JGBeagle to incorporate into his work so far.
So far I have;
The proper spawning event for Muhammad, including the proper triggers and chances for him not to spawn at all if no Bedouin Arabic culture province exists. Muhammad has a higher chance of spawning in a Arabic Pagan Mecca. This event also fires global flags for the proper heresy setting in event 2.
A second event denotes his vision from Gabriel, this event can only fire if Muhammad is at least age 30 and has a higher chance the more learning he has. The event changes him to Islam and gives him "The Prophet" trait, giving a very large relation boost for Muslims, a Learning and Martial boost and a massive AI ambition boost.
Islam will also become a heresy if the province Muhammad was born in was not Pagan. For example, if it was Nicene then Islam will become a heresy of Nicene. If it is Jain then it will become a heresy of Jainism.
The third event deals with setting the "Sayyid" trait to descendants of characters with "The Prophet" trait, which should be Muhhamad.
http://www.mediafire.com/download/2l19z530p2g3m64/Zusk_Islam_Events_v1.rar