There is apparently a forthcoming updater for MacOS X 10.3. If you have external firewire drives that you need to repair and are running MacOS X 10.3, don't bother buying this program right now. It will not fix your external firewire drives.

It also has issues under 10.3 beyond the few I mention above.

Once the updater has been released, and you can get a bootable CD with the newer version on it, buy this program. Until then, save your money and look to another disk utility in the interim.