To login to your blog, you have to go to http://www.yourdomain.com/wp-admin/
(Remember to switch yourdomain.com to whatever domain that you registered)

You will see the following login screen. Enter the username and password that you created during the wordpress setup process. If you dont remember, the Lost Password link will send you an email reminder.

Once logged in, you will see the WordPress dashboard. To create a new post, click on the Posts tab of the left menu bar. Then you can click on Add New from either the left menu bar or on the top.

Here you will write your post title and post content. Once you finished writing your post, then on the right hand side, you can publish your post. You can also save a draft and publish later, if you are not finished. You can preview the post before it goes live on your blog and you can delete the post.

If you want to add pictures or videos to your blog post, you can click on the Add Media button.

This screen will show up where you upload media files, or you can drag and drop the media files to the screen and WordPress will upload automatically.

Once you publish a post, a list of all your post will show up when you click on the Posts tab on the left menu bar. Click on any post title to open it up.

Here you can update your post. You can edit and delete a post if you want.

To manage your media files, simply click on the Media tab on the left menu navigation.

Now you will see a list of your media files which is called your media library. You can click on any of the media files.

Once you click a media file, you can see the details of that media file. Here you can edit your media files information. You can also upload a new file or delete the file if you are no longer using it.

Creating pages is almost identical to creating blog post. On the left menu navigation, click on the Pages tab, then you can click on Add New link from either the sidebar or the top.

One you finish writing your page title and content, you can click on the Publish button on the right, or you can save draft or preview the page first. The same way you can do it with blog posts.

To manage your pages, you can click the Pages tab from the left navigation menu, then you can see a list of your pages. Click on the page title you want to edit.

Now you can edit your page. Once you finish editing, you can click the Update button on the right. You can also preview changes and delete the page if you wish.

To manage comments, it is basically the same way as managing posts/pages. Click on the Comments tab on the left navigation menu. A list of all your comments will show, click on a comment to edit/delete. You can also bulk delete comments by adding a check mark to the left of each comment and using the bulk option on top (Same way you bulk delete emails).