The West Wind Web Store is a sample application that is set up specifically for operation of the West Wind Web site. This is the default installation and this is how the sample will run out of the box.
This probably is not exactly the way you do business but it can serve as a good starting point, since the West Wind business logic related to inventory, calculating taxes and shipping is very basic. Because of this simplicity extending this functionality is actually quite easy.
The things that you will commonly want to change are:
Business Rules
The store is designed with some exensibility beyond the base behavior for key features that deal with business processing. For example, you can hook in custom behaviors to calculate shipping and tax rates. Other things may require you to subclass the Web store business object classes to provide specific business logic features.
Shipping and Tax Calculations
The default shipping and tax calculations are very basic and deal with the West Wind online store scenario. For example our shipping rules only deal with shipping CDs and adding a fixed price for that. This behavior can be easily overridden though. The same applies to taxes.
The HTML pages are all driven through templates in the HTML directory with a .wws extension. These are plain HTML pages with Web Connection (ASP Style) script tags embedded inside them. The pages are driven through class methods first, which pre-process the request and then renders the templates with embedded data. These template pages can be visually changed as needed as long as you're careful with the script tags. You may add or remove items from these pages or create entirely new or additional pages that follow the same rules. It's up to you.
In addition the default store ships with open security which you should customize to force logins to all administrative tasks.