One way to start posting to your blog:
1. Login to your WordPress site
(you can either click login or type the login URL eg. http://your_blog_name.wordpress/login/)
3. When you are done writing, click the Publish button then click the view site button to see your action live on the blogosphere!
4. If you have images to upload to your site, click edit posts and scroll down to the upload file area and click browse to upload selected file.
5. Click upload, send to editor then relocate and resize the image appropriately. Save and view site.
For more details with visual explanation go back to WordPress Tutorial.