You may change the reset password URL that is sent in the email.

<?php
function my_component_init(){
		ossn_add_hook('user', 'reset:login:url', 'my_component_hook');
}
function my_component_hook($hook, $type, $url, $instance){
		//$instance contain user instance
		return 'new url';
}
ossn_register_callback('ossn', 'init', 'my_component_init');