screen_url::screen_url
clip_url::clip_url

$post ['custom_fields'] ['tp_affiliate'] = "http://www.aebn.com/index.cfm?refid=AEBN-NNNNNN&salesToolId=4";
// create an URL of thumb from it's path and file name
$post ['custom_fields'] ['tp_thumb'] = $post ['custom_fields'] ['screen_url'];
// since FLV videos have no unique GUID's let's use their URL's as post GUID's 
$post ['guid'] = $post ['custom_fields'] ['clip_url'];
$post ['custom_fields'] ['tp_flv'] = $post ['guid'];
// check existence
cseo_must_be_binary ( $post ['custom_fields'] ['tp_thumb'] );
cseo_must_be_binary ( $post ['custom_fields'] ['tp_flv'] );
// store thumbnail locally
cseo_store_image ('tp_thumb', $post ['post_title'], 160, 120, 90);
// store original thumbnail url for hotlinking
$post ['custom_fields'] ['thumb'] = $post ['custom_fields'] ['tp_thumb'];
// now let's delete all useless custom fields
unset ( $post ['custom_fields'] ['screen_url'] );
unset ( $post ['custom_fields'] ['clip_url'] );