In me humble opinion be very very very careful with whats on offer from the one and only JAA ATPL DL course currently here in the USA, from conversations with students its going down hill and most have opted for other schools now after forking out lots of $$ . Do your research, and not just based on what the school sells you. Also anyone can use the exam center in florida, your training provider will help you get in touch with the person who handles that center when you get there.
A quick search of the pprune forums will tell you which ATPL DL school to choose I think.
PS how are you a Captain on a fractional on a Commercial?? All the big USA fractionals need ATP's just to apply, or are we talking a Cirrus fractional operation ( that one just dawned on me..sorry)