I want my blog to "live" at blog.mydomain.com (which points to a subdirectory blog of mydomain.com, i.e., http://www.mydomain.com/blog in my file system).
But I want the home page of http://www.mydomain.com to be a Page I create using WordPress.
Sooooo I'm trying to answer the first question of step 4, decide where you'd like your blog to appear. I think it's the second choice, a subdirectory. Or is it? Does the Page at root count?
I don't want to clutter up my public_html directory so I'm leaning toward a subdirectory. Can I assume that will still allow me to put my Page at http://www.mydomain.com (a higher directory)?