When the board was messed up yesterday, I discovered that the cause of it was one of the tables of the forum's database crashed. It happened to be the table that was the search wordlist.
So unfortunately, I'm afraid that the search doesn't work properly it seems now. I'm not sure if this is a temporary bug or a permanent one.
Meaning I'm not sure if being able to search through the old posts will ever be available. If I understand correctly, it will be available, but only after the wordlist is built up extensively. And that may be some time, since after all there are over 40,000 posts here.
"Vincere scis, Hannibal, victoria uti nescis" -- Maharbal, 216 B.C.E.