Now that you have made at least one post, lets do some revisions on previous work. From the Dashboard click on the Manage tab. This will show you your previous posts. You can now view, editor or delete them. If you didn’t write over the original “Hello World” entry that WordPress gave you for an example, you can delete it now. You can also click on Comments amd delete the example comments that WordPress gave you.
From the “manage” tab you can manage Posts, Pages (Similiar to Posts, but in a static location), Comments, Uploads, any comments awaiting moderation, and you can export you current posts for back up.
I will try to touch on including photos on the next post