We are currently using WP-ecommerce and as you say in your

We are currently using WP-ecommerce and as you say in your literature it is VERY troublesome. We are keen to change to Mark Press but we need to know about shipping.
We use a Royal Mail plugin which is supposed to automatically put in the correct royal mail prices - butttt it is not working.
Does Market Press offer royal mail prices?
If not what does it offer?
Trying to find the support docs for Market Press but so far not having much luck. Please could you send me a link.
Your help is really appreciated.

Jo