Tips : Installation | Drupal e-Commerce

Installation
Backup Your Site
Important: Please backup your site and database first. If you need instructions on how to backup your site files and your database, refer to the backing up your site documentation.
Once you have a working backup, proceed as follows:

Installing The Modules
Download the files
You will need two packages to install Drupal e-Commerce: the Token Module and the e-Commerce package. The e-Commerce package contains many sub-directories each containing their own modules relating to e-Commerce.

1. Download e-Commerce (v4) from the project page. There are three main options to choose from. From most stable, to most recent they are:

   • If you have a live site or new site going live soon, please stick with the stable version (eC3) which can be found in the "view all releases section" of the project page.

   • eC4 has an alpha candidate available for download from the project page. It is considered to be stable, and does not include modules which are under very active development or which still need debugging.
     
     [Read more..]

Courtesy : Drupalecommerce.org