Analysis of the English Language

I myself would like to know more about the history or anything about the language used in the Caribbean. This is building off the discussion started by the girl (I'm sorry I can't remember your name!) who talked about her experiences in St. John's, and I thought about the stories my friend told me about his visit to Jamaica and the way language worked there. Or, I don't know if anyone has seen the movie "Meet Joe Black" with Brad Pitt and Anthony Hopkins? There's scenes where Pitt (who's Death) talks to a Jamaican woman and it's really tough to follow along. I guess then is "Jamaican English" (for lack of a better term) a dialect or a type of Creole? This question could apply to any other place in the Caribbean, as it appears there are places like St. John's where the situation is analagous.

p.s. sorry if this post is unclear...basically I'm interested in how the langauge in the Caribbean has changed and adapted over time, given that in that location there was/is such a blending of Spanish, French, English, and African languages