To actually get "points" for the JGMESB, you must have an article actually published or accepted for publication by the time the board meets.
It's obviously best to have your article published before the application is due in September. While you cannot go in and change the application after final submission, you CAN email the program directors directly with the updates as long as it's before the JGMESB meets in November/December.
If you have an article submitted, put it down as "Submitted to [insert journal name]." If it has been accepted, put it down as "In Press, [insert journal name]." Your PI should be able to help you with the proper way of listing it on your CV.
It's always a good idea to have a "civilian" CV that you update regularly and give to the program directors (and whoever may interview you) as well. Good luck.