How to create own blog posts?
To create a blog please create new page Pages > Add New and set up title eg. Blog. In field Template leave default option Default Template. Then click Publish.
In next step please go to Settings > Reading > Front page displays > A static page > Posts page, select page that you already create and click Save changes.
Adding new posts is working just like in standard WordPress Posts > Add New. The posts will be displayed on page that you already created.
For more info about post creation please go to http://wordpress.com/posts. You can also watch below movie about how to create post in wordpress.
