[WBEL-users] Generic SCSI mappings /dev/SG?

I'm having difficulty with my tape device creating the correct generic
SCSI device.

At the moment the system creates both /dev/st0 and /dev/nst0 and work
fine when I 

mt -f /dev/st0 status

All is good, BUT sginfo is mapping  /dev/sg1 through to /dev/nst0 which
is not working with VMware

Does anyone know how to remove the /dev/nst0 or get sg to map to
/dev/st0??