Start the NetBackup Administration Console.  (see relevant doc)

In the menu tree on the left-hand side of the NetBackup Administration 
Console, click Reports.

On the right-hand side of the NetBackup Administration Console, the 
Reports window will appear.

Consult the Description fields, then click on the type of Report that
you want.  The Report Settings window will appear.

Select the Date/Time Range desired.  Use the drop down menu to select
the Media Server desired (unless you add a new Media Server, this will
always be "polaris").  Use the drop down menu to select the Client
desired.  If there is a specific Job ID for which you wish to have a
report, enter it in the Job ID field.

Now click the Run Report button, and the report will be generated.