If you're using SAFARI, click the above download link.
When the widget download is complete, Show Dashboard,
click the Plus sign to display the Widget Bar
and click the widget's icon in the Widget Bar to open it.
If you're using an alternate browser, click the above download link.
When the widget download is complete, unarchive it
and place it in /Library/Widgets/ in your home folder.
Show Dashboard, click the Plus sign to display the Widget Bar
and click the widget's icon in the Widget Bar to open it.