K2 Store, the simple shopping cart for Joomla, is now compatible with Joomla 1.7 and K2 2.5. The alpha is now available for download.
NOTE: Alpha version are NOT meant for production. Take a look at http://k2store.org/home/item/37-download-k2-store-25-alpha-for-joomla-17-k2-25.html
K2 Store is a shopping cart add-on for K2. It quickly turns K2 into a shopping cart. K2 Store comes integrated with Paypal, Authorize.Net and SagePay plugins. Features Product Attributes/Options Payment Plugins - Paypal, Authorize.Net and SagePay Tax, Shipping and Global Discount Orders Management Guest Checkout Sell digital documents Collect the shipping address from the buyers Enhanced cart Enhanced checkout process Professional Support from developers Ajax powered by Mootools MVC structure