You can get this version from download here: http://opensolution.org/download/
Changes in this version are here: http://opensolution.org/download/Quick.Cart/changeLog.txt
Bug fixes to v6.0 here: http://opensolution.org/download/Quick.Cart/bugFixes.html
If You will find bug, something unclear then write it here please!
1. THIS VERSION IS NOT STABLE!!! DON'T USE FOR COMMERCIAL USE, 2. We dont know sure when stable version will be released. It depends of users testing. Maybe in 2-3 weeks.