add_filter( 'template_include', 'template_comment_paginated' );
function template_comment_paginated( $template )
{
	if ( (int) get_query_var( 'cpage' ) > 0 &&
		false !== ( $_template = str_replace( '.php', '-paged.php', $template ) ) &&
		file_exists( $_template ) )
	{
		return $_template;
	}
	return $template;
}