Upgrade deleted license, data and settings

I just upgraded to the v3.0.1016. My license, data files and settings are gone. How do I recover?

If files are not deleted, why has C:\Documents and Settings\User\Application Data\SmartFTP\Client 2.0 disappeared from my hard drive after upgrading to the newest version today, but the folder and its files are in the backup of my hard drive that was taken last Friday?

I'm reverting to Version 2.0 until you've got version 3 sorted out...

SmartFTP does not delete this folder. There is not even a function implemented in SmartFTP which deletes a folder or the files stored there.