Marketpress 3 upgrade from 2.9 and templates

Hello

I've just upgraded from Marketpress 2.9 to 3 on my test site.

The first thing I've noticed is that the custom template files I created for v2.9 aren't being picked up in this version
mp_cart.php
mp_category.php
mp_product.php
mp_productlist.php
(these are all in my theme's root)
The store looks to be using a simple page.php file for single product display.

Also a few other settings seem to have changed - do you have a guide for upgrading from 2.9 to 3.x ?

Pete