First of all, thank you for the new magento club and the Quasar free template.
I have a full working magento site developed under a skin variation under the default/default directories.
I have several extensions installed working fine, but when selecting the new quasar_free package after installation, all these extesions stop working...
All extesions are installed on the default/default directories, so I supose I have to copy the installation extesions archives to the quasar_free folder, but I don't know exactly where to copy.
Yes, unfortunately, when extension developers add the files to the default fiolder, it means that any theme using it's own package/folder can't access them. So, you can either copy the files to the base package, or else the quasar_free package.
When copying, you need to use the exact same folder structure. So for example, if an extension had the following files: