Click "Content" >> "Posts" to the article list page
In the top menu bar "Show By",
You can select "Category", "Status", "Author", "Date", "Search terms" options to filter out the article you want
And don't forget click "Show" button to search your article
In the article list, you can see
"CM"-number of this article comment
"TB"-number of this article trackback
"Views"-number of this article pageview
The icons below "Actions" list from left to right means:
"Edit article", "Delete article", "Link to this article", "Show all the trackbacks to this article"
If you want to change the status or category of a bunch of articles, click "Show Bulk Edit Options"
After click "Show Bulk Edit Options", the "Bulk Edit Options" bar will pop up
Then give the articles you want to edit a "Check" mark, and change their "Status" and "Categories" your want as below