From my limited knowledge of how things work (and kincanucks please sort me out), you got an initial call saying you were selected. Once you agreed to that, CFRG collected all the "Ayes" to make sure the slots were filled for all positions (kinda like a Staff Check). Once they had that box checked, they gave the CFRC's the message with your official offer. This is what you just got called about. Now that you've given the official "Aye", they are going to be course loading you at St Jean with all the other mutts, sending out your joining instructions so you know what to do and getting you ready for the big Green Machine. You should get your joining instructions in the mail. You will go to the CFRC (they will pay trasnportation costs via travelclaim) to swear in and sign your contract in December. Here, or by mail, you should get your itinerary which explains how you are getting to St Jean, flight times, etc, etc along with another travel claim. You then push your PT to the max and wait for the date to travel to St Jean.
Make sense? Again, this is my understanding of things from past dealings - kincanucks may re-arrange the details.
Have fun.