before you begin with eCart, make sure your have your Dreamweaver site defined properly for dynamic site development, see the "Defining a Dynamic Site in Dreamweaver" tutorial on the learning resources page:
resources.php?utm_campaign=Forum_header&utm_medium=Forums&utm_source=WebAssistForums
if you plan to use a dynamic database driven cart, you may want to start using our free eCommerce database as a starting point:
ecommerce-database/
and you will need to create the database connection in dreamweaver, the "Creating your database connection in Dreamweaver" tutorial on the learning resources page can help with that
after setting the site up, the best place to begin using eCart is to start with the getting started guide that is linked on the eCart support page:
ecart/