I've been wondering about that too. What I've been doing is running a site-limited search (just add "site:timbearcub.livejournal.com" to your query) at google instead. It returns results from my "tag" pages. I'm not sure if google indexes pages that aren't tagged. *ignorant shrug*
Try archiving your messages with ljArchive and using that to search them. Unfortunately it can't archive other users' posts, so for searching them you're out of luck.
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Date: 2008-11-07 03:10 pm (UTC)http://www.google.com/search?q=decent+search+site%3Atimbearcub.livejournal.com
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Date: 2008-11-07 03:44 pm (UTC)(no subject)
Date: 2008-11-07 06:50 pm (UTC)(no subject)
Date: 2008-11-07 11:36 pm (UTC)It was supposed to be done this year, but is looking more like early-to-mid 2009 now.