i stand corrected, but your time table as per bp concern is still fine. as long as you were accepted in a bridging program before the expiration of your loe, and was able to inform ahpra of your acceptance in a bridging program, then no problem at all.
to quote ahpra's loe sent to me, "it is imperative that you advise the ahpra contact person below in writing or by email of your acceptance into a program prior to commencement otherwise your application may be expired and you would not be eligible for registration at course completion. this correspondence must include your ahpra contact number, name and date of birth, course name, the education provider and commencement date. upon completion of the above, the board will progress your application for registration if you have met all of the required registration standards. if we have not been notified that you have commenced a course by 08/03/2013, your application will expire and become void and your incomplete application will be destroyed. extensions beyond this date will not be granted."
my understanding might be wrong, so better ask ahpra re your case. :)