Is there a way to archive by author - in addition to date and category?

yeah.... read this post. It helped me a lot, although I was doing something overly complex. The MTAuthors plugin should do the trick

http://www.movabletype.org/support/index.p...=14&t=39701&hl=

Thanks. That helps. Appreciated.

Making things a little more complex... here's what I'm trying to achieve...

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In each authors' profile the url is specified as [domain]/authors/.

A [domain]/authors/index.htm template has been created.
That page lists each author's name and contact/bio/other details.
Additionally it lists the categories to which the author has posted - and the number of entries therein.

Within the info for each author, a 'more/view posts' link delivers a page(s) specific to that author.
For this, an additional template [domain]/authors/[authorname]/index.htm has been created for each author.

These pages repeat the above info and date-ordered list the posts and categories (with the post titles linking to the individual entries).
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I haven't yet figured how to do the list posts/cats bit.