How to use it?

Can you say anything about how to use TEIPress? I’ve installed it. I see the TEI Press menu. But it’s not obvious how/where I get my TEI, XSL, and CSS into a post. I don’t see any documentation or how-to.

I don’t need to edit my files. I have the TEI, XSL, and CSS already. I just want to execute the transform and display the document as (or in) a post.

Any help appreciated, no matter how small!

Thanks