This is a WordPress widget to display the 5 most recent posts of a given custom post type. There is a link included at the bottom of the widget that links to the archive page of the custom post type.
Put the files in your plugins directory and then activate the Recent Post Type Posts plugin. Head over to your widget panel and then drag the widget to the widget ready sidebar of your choosing.
Right now you can just choose from your custom post types. If you don't have any or don't know what that is, then this plugin isn't going to help you.
If you run into any problems just let me know. Feature requests and additional functionality will be taken into consideration.