AirTran Airways A+ Rewards - The A+ credits promotion!!!

Hey,
I called the A+ reward desk to ask if i transferred my AMEX points in to A+ credits if I could bank them and the answer I got was very unclear. If anyone knows if the deal allows you to just transfer the AMEX to A+ credits with out having to use them instantly please let me know.
Thank you

Of course-they are banked automatically and are subject to the 1-2 year expiration of all credits.