function insert_image2post( $postid, $image, $featured = false ) {
      global $wpdb;

        $post_title = $wpdb->get_var("SELECT $wpdb->posts.post_title FROM $wpdb->posts WHERE ID = '$postid'");
        if( is_null( $post_title ) )
            return false;

        $post_name = sanitize_title( $post_title );

        if( !class_exists( 'WP_Http' ) )
          include_once( ABSPATH . WPINC. '/class-http.php' );

        $photo = new WP_Http();
        $photo = $photo->request($image);
        if( $photo['response']['code'] != 200 )
            return false;

        $attachment = wp_upload_bits( $post_name . '.jpg', null, $photo['body'], date("Y/m") );
        if( !empty( $attachment['error'] ) )
            return false;

        $filetype = wp_check_filetype( basename( $attachment['file'] ), null );

        $postinfo = array(
            'post_mime_type'    => $filetype['type'],
            'post_title'        => $post_title,
            'post_content'      => '',
            'post_excerpt'      => '',
            'post_status'       => 'inherit'
        );
        $filename = $attachment['file'];
        $attach_id = wp_insert_attachment( $postinfo, $filename, $postid );

        if( !function_exists( 'wp_generate_attachment_data' ) )
            require_once(ABSPATH . "wp-admin" . '/includes/image.php');
        $attach_data = wp_generate_attachment_metadata( $attach_id, $filename );
        wp_update_attachment_metadata( $attach_id,  $attach_data );
        if( $featured )
            add_post_meta($postid, '_thumbnail_id', $attach_id);
        return array($attach_id, $attachment['url']);
    }