Shopping Cart Modifications on a WP eCommerce

Hi, here's what I need: 1- I need a drop-down menu under Country by default at Canada (only option available since no selling outside Canada) and State need to be changed for Province with a drop-down menu with the following provinces: Alberta British Columbia Manitoba New Brunswick Newfoundland and Labrador Nova Scotia Nunavut Northwest Territories Ontario Prince Edward Island Quebec Saskatchewan Yukon *See the [login to view URL] picture 2- On a new registration i want the information to be inserted by default for Shipping address, not just Billing address as it is right now. ([login to view URL]) *The shopping cart has to stay compatible and work with Paypal IPN and Authorize.net. Experienced people only please.