Problems using Paginated Contents

I’ve installed the plugin and activated it. I also have the title/page separator visible when I’m writing a post. Do I need to ad code anywhere? There were some examples about how to use the plugin…for example I read to put… <?php if( function_exists( ‘wptopc_pagination_links’ ) ){ wptopc_pagination_links(); } ?> Inside the loop. Where is the loop located? Is that the index.php file? Thank you http://wordpress.org/extend/plugins/wp-table-of-paginated-contents/