Drivers for Seagate TapeStor(Travan NS)

We have just purchased a TapeStor 20GB (Travan NS) Model No. STT220000N-RCVT SCSI tape drive and cannot find drivers to use with our Novell 4.11 system. We tried to use the drivers that Novell new about but it eventually crashed the server. The backup software we are using is Arcserve 6.6