It looks like we'll be upgrading the forum to phpBB3 soon. We don't know when exactly, but when we figure things out we'll try to give you some kind of notice.
We'll have to take the forum down for about 1/2 day. We'll try to do that in the early hours of the morning so that you are not heavily impacted.
Meanwhile, if you try to visit one day, and we are down for maintenance, just figure it'll be down for 1/2 day.
Thanks,
Mike...