If you were using an R8.x version of P6 EPPM and upgraded to 8.3, and you are using BI Publisher 11g, you can add new reports to your P6Reports catalog.
To add the new reports:
Copy the P6Reports.zip from the P6 media pack to a temporary location.
Extract the contents of P6Reports.zip and open the extracted folder.
Depending on your database, open the P6reportsOraBIPub11g or P6reportsSQLBIPub11g folder.
Open the Other folder.
Copy the P6reportsOraBIPub11g_Other.xdrz or P6reportsSQLBIPub11g_Other.xdrz to the BI Publisher repository (or preferred location).