HP DAT Drive C1533A on RH9 Problems

HELP!!

I am having some major problems at present with a HP dat drive under RH9. The drive worked fine previously under RH8, but now does not work.

I am using kernel 2.4.20-30.9 on a i686 athlon intel box.

My messages log shows the below:

Apr 23 11:39:24 devsys kernel: ahc_pci:1:6:0: Host Adapter Bios disabled. Using default SCSI device parameters
Apr 23 11:39:24 devsys kernel: scsi1 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.8
Apr 23 11:39:24 devsys kernel: <Adaptec 2902/04/10/15/20/30C SCSI adapter>
Apr 23 11:39:24 devsys kernel: aic7850: Single Channel A, SCSI Id=7, 3/253 SCBs
Apr 23 11:39:24 devsys kernel:
Apr 23 11:39:24 devsys kernel: blk: queue c1dd0a14, I/O limit 4095Mb (mask 0xffffffff)
Apr 23 11:39:24 devsys kernel: Vendor: HP Model: C1533A Rev: 9406
Apr 23 11:39:24 devsys kernel: Type: Sequential-Access ANSI SCSI revision: 02
Apr 23 11:39:24 devsys kernel: blk: queue c1dd0c14, I/O limit 4095Mb (mask 0xffffffff)
Apr 23 11:39:24 devsys kernel: scsi : 1 host left.

After this there is nothing else. I have used the hardware browser to show more information and it lists the drive as /dev/st, however when I use the command mt -f /dev/st eject I get the following:

/dev/st: No such file or directory

So I try the below and get:

/dev/st0: No such device

Doing a ls -l on /dev/st0 shows the following

crw-rw---- 1 root disk 9, 0 Jan 30 2003 /dev/st0

I am in desperate need of some help on this one, there is a gold star up for grabs..

Thanks..