How to generate the backed up Tape(LT0-3) on Backup Exec

on my case, Tapes (LT0-3) were backed up by Windows Server 2003 R2 - "NTBackup".

My ex-colleague had associated the Windows server 2003 R2 in Symantec Backup Exec 2012 installed on Windows Server 2008 R2. However, some of backed up Tape can be restored on Backup Exec, some could't be restored due to no found the catalog, Even though select the "Catalog" fuction, it has no response.

So my question is How to Regenarate the catalog from the backed up tape by NTbackup in Symantec Backup Exec 2012.