As mentioned in my previous post on the problems with Technorati tag pages, when Technorati's spider starts crawling your blog it only looks at the posts showing on your main page - not your archive pages, not previous posts which aren't on the main page.
If you're keen enough and have the time to go and tag your old posts from before you first got Technorati to index your blog or before you first started tagging your posts, here's one way: set your blog so that ALL those old posts (once you've tagged them) appear on your main page (if you're on Blogger, then here's how). Then ping Technorati (ideally doing a new post too, for luck, to make absolutely sure it doesn't get ignored as a superfluous ping).
It's cumbersome, it will probably make your main blog page take an age to come up which may frustrate your readers, but it should work - provided Technorati don't then classify it as a spam blog. So if you try this, on your own head be it, and you'll need to contact Technorati if it doesn't work because it results in your being labelled a link spammer (on which see my previous post), plus you'll then have to leave your massive main page up there for as long as it takes Technorati to get round to unspamblacklisting you, thus possibly prolonging your readers' agony (alsos it may not work for all your posts as there's usually a limit on how many posts your blog platform will allow you to display on your main page at once). If you do try it, don't say I didn't warn you...
If anyone knows another way I'd be glad to hear it. And I'd also be interested to hear from anyone who does try this and gets it to work.
Technorati Tags: Technorati, blog, blogging, blogs, tag, tags, tagging, Improbulus, A Consuming Experience, Consuming Experience