The Storag Master's Pawn


I have a first gen (?) blueberry 333MHz G3 iMac that I resurrected recently with Panther and continue to use a 15GB external HDD I added to it a few years ago. I backed up all the data before I installed Panther, then ran the OS X Disk Utility to locate the HDD, but it was unrecognizable. The device uses Storage Master drivers for OS 9, so I either need and OS X update (which, as of yet, I have not found), or some way that I can format it so Panther can see it. Any suggestions?