Re: D'Oh! Encrypted files, transfered, then reformated.
Stop using your hard drive immediately and don't do any more writes to the drive. You need to slave it to another OS and run forensic data-recovery tools to see if you can recover any of your encryption keys. Yes, I know you've already formatted the drive, but some of your old files are probably still recoverable. There are various tools out there that are designed for this scenario.