NTP over IPv6 on a Netscreen

I spent a little time trying to get my Netscreen to talk to an IPv6 NTP server today but it wouldn't work. I could ping the IPv6 server but no NTP. I am running 5.4 code and it does IPv6 flawlessly but NTP didn't want to work. But I found out why. Per Juniper, this isn't supported until 6.3 and I am not sure if there will even be a 6.3 code put out for the EOL 5GTs. Bah!