First wanted to say that this plugin has been a real lifesaver. Got the advanced version and ordering custom posts types is a breeze. Would 2nd the pagination feature as I too have several hundred entries in one of my post types.
Did notice when using the Debug toolbar plugin that lines 341 & 343 throw warning notices where those add_submenu_pages functions are called. Changing the userdata_get_user_level() argument to a capability ('edit_pages' in my case) fixed it for me. More background here: