Look for:

load_plugin_textdomain(‘fv_seo’, false, dirname(plugin_basename(__FILE__)));

add this line below it:

add_post_type_support(‘[your_custom_post_type_slug]’, ‘fv_seo’);

… look for:

add_meta_box(‘fvsimplerseopack’,__(‘FV Simpler SEO’, ‘fv_seo’), ‘fvseo_meta’, ‘page’);

add this line below it:

add_meta_box(‘fvsimplerseopack’,__(‘FV Simpler SEO’, ‘fv_seo’), ‘fvseo_meta’, ‘[your_custom_post_type_slug]’);

This *seems* to work fine for me. Use at your own risk :)