http://www.easeus.com
http://www.ptdd.com
It seems that you lost your files.
Download the demo version to see whether it would help you.
Download demo version:
http://www.easeus.com/download.htm
You can use "DeletedRecovery" to scan your drive. After the scan is complete, the lost file will be displayed in Data Recovery Wizard, you can select them and recover them.
NOTICE: never install in on the harddisk you want to recover.