Alternative: Read about Wp E-Commerce

If you are looking for the easiest and most versatile ecommerce option for a WordPress website than ECWID is it.

“Ecwid” stands for “ecommerce widgets”.

Ecwid is a free full-featured shopping cart and an e-commerce solution that can easily be added to any blog or Facebook profile. It offers the performance and flexibility you need, with none of the hassles you don’t.

There are eight key advantages to Ecwid:

• It’s free. (more features cost $)
• It has AJAX everywhere and supports drag-and-drop.
• It can be easily integrated to any existing site or Facebook profile in minutes.
• It can be mirrored on many sites at the same time. Add your store to many sites, manage it from one place.
• Integration with social networks. Run your own store on Facebook, mySpace and many others.
• Simple to use and maintain. For both store owner and customer.
• Lightning fast. New-gen technologies make Ecwid much faster than usual shopping carts regardless the hosting service you use.
• Seamless upgrades. You just wake up one day and enjoy new features.
• And more than 100 other features

See the demo here: 

Download the Plugin Here

All Features

Shopping Experience

• Lightning fast AJAX interface
• Full drag-and-drop support
• Products already in cart are marked in product list, making shopping easier
• Real-time shipping estimates based on customer IP
• Customer can create profile or checkout without creating profile (configurable)
• Address book for customers with profiles

Catalog Management

• 29 built-in storefront translations
• Product options
• E-goods
• Customers can attach files to orders
• Inventory tracking
• Image gallery
• WYSIWYG editor for HTML product descriptions
• Automatic thumbnail generation with image sharpening
• Product can be in more than one category

Shipping & Tax

• Configurable Shipping/Tax zones, rates and rules
• Realtime shipping quotes for UPS, USPS, DHL, FedEx, Canada Post, EMS Russian Post and Australia Post
• Realtime shipment tracking

Promotions

• Discount coupons
• Free Facebook integration

Design, Integration & Architecture

• Integrates with your existing site in two minutes
• Product Browser, Product Search, Minicart and Categories widgets that can be placed anywhere within your site
• Does not require software installation
• Preset and customizable CSS design schemes
• Categories widget can be horizontal and vertical
• Ecwid can handle product catalog and navigation and render it at your site
• Ecwid can generate “Add to cart” links if you want to have custom pages for your products
• SSL encryption for sensible data transfers
• Seamless upgrades
• Dedicated plain HTML version for mobile devices and SEO purposes

Orders

• Customizable e-mail notifications
• Order history for customers and administrator
• Track payment and shipping status
• Customer IP in order details
• Invoice printing
• Support for PayPal, Google Checkout, Authorize.Net SIM, 2Checkout, HSBC CPI,
  Network Merchants, e-Path, Robokassa,
  eSelect Plus (Hosted Paypage),
  Beanstream (Hosted Payment Form),
  eWAY (Shared Payments CVN / “Hosted Payment” page), VK Merchant API and Sage Pay (Form)
• Configurable min/max order amount limits

Data Management

• CSV export for order, product and customer data
• CSV import for product data
• Configurable measurement units, date/time formats and currency symbol.