I would like to add a custom write panel to a custom post type. I'm looking at the the code here:

http://wefunction.com/2009/10/revisited-creating-custom-write-panels-in-wordpress/

I can get the custom write panel to appear on a standard post edit page but not for my registered custom post type.

add_meta_box( 'int_parent_meta', ucfirst( $key ) . 'Options', 'display_meta_box', 'name-of-custom-post-type', 'normal', 'high' );

If I replace 'name-of-custom-post-type' in the above line, the panel appears on the post edit screen.

Anyone know what I'm missing here? Wordpress version is 3.0.1