Newbie Needs help with tape drive

Greetings gurus,

I need help adding a scsi tape drive to my 7.2 system.

I recompiled the kernal for scsi tape support.  Added a scsi card. I have reviewed the scsi howto,but things still aren't working.

>From the gnome hardware browser - it sees the tape drive listed as /dev/st, but I can not access it.  I have tried as /dev/st0, /dev/nst0 with out any luck.  

I have tried to add it to the /proc/sc

modules.conf
===============================
alias parport_lowlevel parport_pc
alias eth0 3c59x
alias scsi_hostadapter off
alias sound-slot-0 emu10k1
post-install sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -L >/dev/null 2>&1 || :
pre-remove sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null 2>&1 || :
alias usb-controller usb-ohci
options i810 xfreeversion=41
alias scsi_hostadapter1 atp870u

dmesg
====================================================
parport0: PC-style at 0x378 (0x778) [PCSPP,TRISTATE]
parport0: irq 7 detected
aec671x_detect: 
  ACARD AEC-671X PCI Ultra/W SCSI-3 Host Adapter: 0    IO:ff00, IRQ:11.
        ID:  6  DEC     DLT2000 15/30 GB840B
        ID:  7  Host Adapter
scsi1 : ACARD AEC-6710/6712/67160 PCI Ultra/W/LVD SCSI-3 Adapter Driver V2.6+ac 
 Vendor: DEC       Model: DLT2000 15/30 GB  Rev: 840B
 Type:   Sequential-Access                  ANSI SCSI revision: 02
scsi : 1 host left.


cat /proc/scsi/scsi 
===============================
Attached devices: 
Host: scsi0 Channel: 00 Id: 00 Lun: 00
 Vendor: PHILIPS  Model: CDD3610 CD-R/RW  Rev: 3.08
 Type:   CD-ROM                           ANSI SCSI revision: 02

lsmod 
st                     28532   0  (autoclean) (unused)
scsi_mod              100208   4  [st sg sr_mod ide-scsi]



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