Restore Post ID
If you need to restore the post and page ID columns to the respective management interfaces, you should install this plugin.
When WordPress’s management interface was changed with version 2.5, the developers decided to exclude the post, page, and link IDs from their respective management tables. This data can come in handy for a variety of users, so I created the Restore Post Id plugin.
If you’re a WordPress developer or designer and need access to specific post and page IDs, then you should install this plugin. After activation, check the post and page management interfaces. The ID will be located directly next to the batch action checkbox. You can use the ID to display certain information and special templates for specific posts and pages. You can also use the post and page IDs as input to a variety of WordPress functions.
This is so useful. how about the category IDs as well?