WordPress.org

1. Unzip the file
2. Upload it in /wp-content/plugins/dday/ of your WordPress installation
3. Activate the Plugin
4. Visit the management page in the administration of WordPress
5. Change the format of display to your taste and to your language for non english-speaking people (See it in "Edit Options" at the bottom ). ITS VERY IMPORTANT FOR NON ENGLISH USERS!!!
6. Add DDays and modify the order with the drag and drop function.
7. Insert with the Widget or use wp_dday_list() to display the list of all active DDays or use the widget

You can configure Nice tooltip on mouseover a DDay :

In wp-dday.php search $nice_tooltip (l.17) :

• 0 = De-activated
• 1 = activated without jQuery required
• 2 = activated with jQuery required. Bettter if your theme or one of your extensions uses already jQuery