Minimal changes for an oscommerce store

I have an oscommerce store based on this template: [login to view URL] However, I have some programming bugs and need some graphic design work. This is the list of pending tasks. PAYMENT MODULE [login to view URL] is not showing the shipping price. Need a rate for delivery within some cities, a rate for national, and a rate for international, based on the city where the package is going to be delivered. Need to manage the following payment options: - Upon delivery. Customer is paying when he receives the merchandise. - Bank Transfer or deposit. - Credit card using Paypal - FORMAT [login to view URL] has not a comple style as the template. REGISTRATION. Replace word “Empresa” with “Iglesia” Replace word “Suburbio” with “Colonia” Need to replace the image of the surfer that appear when you register. Need fields Country, State, and City be list box instead of editable, showing all Mexican states and cities. Need to change the order of the fields. HOME PAGE Replace “Add to cart” with “Agregar al carrito” Replace “Details” with “Detalles”. Replace Go button on search box, with 'Ir' button. Product description is not appearing. ADVANCED SEARCH Table does not have the layout. BUTTONS. All buttons need to be like in the template. To let you know the URL you are going to modify, and for further discussion, please write PM.