Yes, theme packs are a way to control the look and feel of the entire web site by simply installing a template, then filling out the text. Of course, you can make your own templates and theme packs. We'll show you how to make your own theme packs to control the look and feel yourself. Yes, in fact, you may customize almost all the aspects of the cart beyond the engine and payment processing modules, including the order forms, layout, graphics, etc. Yes, you can use your web browser or FTP at your choice.
Many people use a combination of both.
Yes, you can add items, remove items, change quantities, etc. Yes, you can choose to display the cart contents either while shopping after an item has been added, or only at check out. YES, in fact we have support for multiple tax authorities. So if you have requirements to collect for more than one tax authority, WebMerchant will handle this with ease. YES, in fact support for multiple carriers and methods.