Upload the contents of the zip file (ns-countdown folder) to the /wp-content/plugins/ directory.
Activate the plugin through the 'Plugins' menu in WordPress.
EXAMPLE USE: You can insert this in a post [ns-countdown date="2011-05-18 00:00:00" text="Countdown text" end_text="Countdown is finished!"] (you can insert as many countdowns short code tags as you like!!)
Requires: 3.0.0 or higher Compatible up to: 3.1.4 Last Updated: 2011-6-13 Downloads: 1,828