I've signed up and got my first post in, but how do I get in there and get started on my next one?

Sorry about the delay in responding
Go to the "admin" section of your blog. You'll see something on the left side of the page that is the editing, or posting a new post.

Alternatively, if you don't see an "admin" button, EDIT your current post...that will send you to the whole admin page and you can see a "new message" or "new post"