Designer Notes

If you are running a licensed version of SQ Designer and want to move to the free version, you will need to fully uninstall the previous version of SQ Designer before installing the latest (free) version.

Note: SQ Designer is an Adobe Air application and will run on both the Mac OS X and on Windows. However you  will need to install the free Adobe Air runtime environment on the target computer before installing SQ Designer. 
http://get.adobe.com/air/