Actually, for (hierarchical) custom post types, there isn't even an admin menu item for the tree view. When I tried to replace post_type=page with post_type=CUSTOM, I got this error:
Cannot load cms-tpv-page-page.
I tried disabling ALL plugins except for this plugin and "Custom Post Type UI", to no avail.
I tried deleting this plugin and reinstalling, same problem.
I tried hard-coding the custom types in functions.php -- still doesn't work.
Please let me know what else I can do!