Norton ghost 15 tape backup

hi

i have a ibm lto 4 tape drive of the type which dell use in there powervault 120t installed on a pc which i want to use for back up purposes the pc  is running win 7 64bit.

now can someone please guarantee that ghost 15 is capable of doing this.

i have tried it but when i open ghost all i can see in backup destinations is another hard drive d: which is on the same machine

the pc is connected to network with various nas on it these are also no shown.

i can see the tape drive in device manager but not in windows explorer although i can see the nas's

any help apreciated