I'm not sure if there is any restrictions on the number of times that file can be downloaded. I can't upload the patches through my crappy home connection. If they need to be reposted let me know.
I don't have a system handy, but I wonder if this would be worth a shot.
Set the time on the system to March 11 at something like 1:58 AM. Let the clock advance past 2 AM, which should then roll the clock back to 1 AM, and see what happens. I wonder if there may be something in the system that sees the time change then propagates the time to the phones. If you've skipped the time change, the system might just be dumb enough not to write the new time change to the sets.
I can try this out Monday when I'm back in the shop. If it indeed doesn't work, I'll raise a stink with Nortel.