From Shopp Documentation

The Shopp plugin provides an online commerce platform that elegantly solves the problem of handling larger e-shop operations without being so complex that smaller shop owners are overwhelmed with features they don't need. It has been designed to focus on a balanced, efficient, and stable feature set that makes e-commerce as easy as it can get, without sacrificing the powerful flexibility and adaptability required by shop developers and designers.

What You Need To Get Started

• Great products to sell
• A self-hosted WordPress installation
• Knowledge of how to install plugins into WordPress
• A web host which will support Shopp's modern design needs - check out Shopp's Server Requirements.
• A copy of Shopp

Install & Setup Shopp

Installing Shopp is as simple as installing any other WordPress plugin, as long as your server supports all of the technologies Shopp requires. If you need step-by-step guidance, read the Installation instructions. Once you've completed the installation, you'll need to edit the settings to customize your Shopp setup to meet your e-shop needs.

Shopp Pages

During installation, Shopp will automatically generate 4 WordPress pages that will be used for the navigation and display of Shopp-related content. Shopp uses these 4 pages as gateways to all the dynamic content that Shopp provides. Without them, Shopp cannot function properly. The WordPress pages installed by default are:

• Shop
  Displays the store catalog, including categories and products
  • Cart
    Displays the customer shopping cart
  • Checkout
    Displays the checkout pages, including the checkout form, confirm order screen and the final order receipt on a successful order
  • Your Orders
    Displays the order lookup or account management screens depending on the settings for accounts in Shopp's Checkout Settings.

You can feel free to edit the pages in the WordPress pages editor. You can change the page names, permalink slugs, or add your own content to these pages. You must, however, retain the shortcode included in the page ([catalog] in the Shop page, for example).

The Default Catalog

The default catalog page (the Shop page in a default installation) is known as the "catalog landing page". It is displayed based on the catalog.php template file. All of Shopp's default templates are stored under .../wp-content/plugins/shopp/templates/. It is very important that you do not edit the default templates. These templates will be overwritten whenever you update Shopp. If you would like to change the look of your catalog landing page, or any other Shopp interface layout, follow the steps outlined in Setting Up Theme Templates.

Customize Shopp Using Theme Templates

Shopp uses theme templates to give you the ability to customize how your online store looks and functions. This flexibility allows you to integrate your online store with the look and feel of your WordPress theme for a seamless browsing experience.

You'll need to be familiar with XHTML, CSS and some basic PHP to edit Shopp theme templates. Learn about customizing Shopp theme templates in the Template API reference.

If you're not comfortable editing XHTML, CSS and PHP, and still want to customize your Shopp installation, you can search online or refer to the Shopp Developer Network for qualified Shopp professionals to help you.