How can I display a drop-down select of Post Names

the fourth argument should be the name of the custom post type, as defined when you created the post type. see http://codex.wordpress.org/Function_Reference/add_meta_box

For a clearer explanation of how to successfully create metaboxes, see this tutorial

the second argument should be the callback function, you can create the drop down HTML in a function, and place the function name in this argument and you’ll have your pull down menu.

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