Need help mounting external disk

My friend runs a business and one of his hard drives failed recently.

It's a ~20GB Maxtor drive formatted FAT16. When you plug it into a Windows box it says the disk must be formatted. When you plug it into a Mac it says it must be initialized, same thing.

I know there is a command to force-mount a disk, but I just don't know where to find it. I've been googling for a while now and still nothing.

Any help would be greatly appreciated. I have DiskWarrior at home and I will try it with this drive when I get home.

Oh, PS, it's mounted via a USB enclosure, the same brand (Dynex) that I've used in the past to backup someone else's hard drive when doing a Windows format.

Thanks!