When did kofi Kingston join WWE?

Kofi Kingston signed his contract with WWE in September 2006 and was assigned to Deep South Wrestling, where he lost his first match against MVP. In March 2007, he was exposed the WWE Universe in a match on Raw against Charlie Haas whom he defeated. Late the year, he was moved to FCW, but only for a couple of months as soon he went to ECW. From there he has been on Raw and Smackdown. I hope this answers your question.