I really don't know if Disk Director can fix your problem - it's an valid partition table so it'll need to correct/repair the MBR records rather than a one-click thing....
The best way of doing it would be to back up your data to another drive, right-click the drive in Disk Director and "Clear" it (not format partitions, but "Clear" drive). Then re-create the partitions and restore your data.
A quicker but riskier alternative:
Clear the drive, then use the "Partition Recovery Wizard" that is in the menu of Disk Director to find and re-create the records for your partitions from scratch, and it should bring your data back. But if the recovery fails, your data would be gone.