Make sure you login to the Wordpress Administrator page at http://www.yoursite.com/wp-admin. Change yoursite.com with your web domain.
Posts and Pages are different types of content on your site. Use this support page to post blog entries to your site. All other content is considered a page, so Add or Edit Wordpress Pages
Create a new post
Save a Draft, Automatically Publish Later, or Password Protect a Post
Categories and Tags