Atahualpa has some SEO stuff in it, but it lacks the ability to accept meta description and keywords for posts, so that's the feature I'm most looking for.
I've made the adjustments in the Atahualpa Theme options. It's possible I got lost in the yeses and nos, however, I tried multiple combinations so I think I've tried everything.
In the Headspace settings, I put meta description and tags in global, home, and posts. The meta descriptions and keywords disappeared from the source page of the home page and did not show up on the posts.
Within the add/edit post area, the Headspace interface showed up, so I know it was properly installed.
Are these compatible and I'm missing something or are they incompatible? I've seen other posts here, so I'm guessing they are compatible.
Incidentally, I also tried All in one SEO, but couldn't get that to work. I don't recall the details.