External Hard Drive Repair 'Time Machine' On Mac Leopard Damaged My External Hard Drive. How Can I Repair My Hard Drive?

'Time Machine' on Mac Leopard damaged my external hard drive. How can I repair my hard drive? - external hard drive repair

I have upgraded to Mac Leopard this week and has damaged my Time Machine external HD when they tried to delete them. I have Disk Warrior and Tech Tools. My HD is connected to FireWire. I ask all the Mac OS, which is experiencing have this please give me some tips on how I recover my hard drive. Thank you!