I'm trying a(nother) post now without the "www" (I'd already got rid of target="_blank" in case that was getting in the way). It's now (though it was before) EXACTLY as they say on their pages. Including + instead of %20 for phrases (even though that seems to work to access the pages generally - it's just not getting my posts onto their tag pages).
I need my lunch.
Technorati Tags: Weeping, Wailing, Gnashing of Teeth, Banging Head Against a Brick Wall, Improbulus