Hi,
I think you are talking about NetBackup and not Volume Replicator.
With NetBackup, for a restore, go to the Backup, Archives and Restore option of the administration console (If you are an operator you should be able to get proper access and procedure from your company's documentation). From the backup, archive and restore menu, you will have to select the backup from which you wish to restore and then you can select to restore to an alternate client and/or alternate location. The "NetBackup User Guide" has detailed procedures for restores including restores to alternate locations and clients.
If you are talking about a disaster recovery situation where you need to retrieve tapes from a different master server, etc, then you will need to either recover your NetBackup catalog or import the tapes as was mentioned previously.
If it is Volume Replicator, then please provide additional information.
Hope this helps.
Regards,
B.