unfriendly messages reported to visitors, appears uc_ajax_cart_messages.tpl.php doesn't do anything

HI,

First let me say what a fantastic module, I'm over the moon with every other aspect of it apart from this.

Forgive me if this info is somewhere else, I have looked high and low and personally can't find anything. There are a few posts relating to this sort of message being returned Cart link product action: p3_q, but no where does it seem to tell me where I can modify this. I have the latest alpha7 release and it looks at first glance like there is a very nice easy uc_ajax_cart_messages.tpl.php template file in which I was hoping I would be able to modify these messages, or at least get it to return something useful. I've played around with it quite a bit and from what I can determine, on my install anyway, uc_ajax_cart_messages.tpl.php doesn't actually do anything. It doesn't even complain if I remove it.

1. is this future functionality or am I missing something?

2. if it's future functionality, how do I stop it reporting that awful message 'Cart link product action: p3_q' until said future functionality comes along?

Kind regards
Paul