WordPress.org

Upload the plugin to your blog, activate it and you can use this in three ways:

1. As a widget

Go to Themes > Widgets and add the widget

2. As a php tag in a template

Just insert it the php tag Charted_Archives($number_of_months_to_show);

3. With the shortcode in a page

If you do not want to add php to your page you can use a shortcode

[chartedarchive] (defaults to 7 months)

[chartedarchive months="12"] (where 12 can be any number of months)