Wow, what a day.
Just wanted to let everyone know the water was flowing again at the 'Creek. I went to fix the 'database errors' problem remotely this morning, and ended up rebooting the server afterward. Unfortunately, the server tried to reload the old network interface (instead of the new one), so I wasn't able to bring the 'Creek back up until I got home this evening (via the terminal).
As it turns out, the database errors were being caused by a corrupt index (from an improper shutdown during the last power cycle/storm we had), but it was on an infrequently used table, so I didn't see the issue until it happened to the table where new threads are stored. (Hence noone being able to post).
Long story short: Enjoy the Creek--while I empty the 2000+ emails out of my inbox!! (Yes, every time it says, "An email has been sent to the technical staff"....)