We're having problems with website access. Some folks might have gotten a message earlier from me (Zac) naively proclaiming that all was well. Please bear with us, we're working on it.
UPDATE:
I (Zac) am unable to RTFM. Amanda figured out what was going on. It now looks like things are humming along again.
Plus, our webhost got back to me about increasing the PHP memory limit, so there shouldn't be any more lost searches or administration problems.