You can get this version from download here: http://opensolution.org/download/
You can test this version here (try to order something etc): http://opensolution.org/Quick.Cart/v2.0/
Changes are here: http://opensolution.org/download/Quick.Cart/changeLog.txt
1. THIS VERSION IS NOT STABLE!!! DON'T USE FOR COMMERCIAL USE, 2. Update script from QC 1.x to QC 2.x we will release when we will release stable version, 3. Stable version we will release in 1-2 weeks IF we will not find big bugs.
Please spend some time and test this release in different browsers and different operation systems. Try to add products, categories, couriers, add photos, check gallery show, try to print order/product on different printers and order something with 1 products, many products etc. If something is wrong then write it here! It will help us!