To import or upgrade a plug-in, follow these steps as explained in detail in Chapter 5, Plug-In Administration, in Sun N1 Service Provisioning System 5.2 System Administration Guide
In the Administrative section of the browser interface main window, click Plug-ins.
In the Action column of the Plug-ins page, click Import.
Browse to the location of the com.sun.weblogic9_1.0.jar JAR file.
Click the Continue to Import button.
When the import complete successfully, a plug-in details page appears and shows you the objects that the plug-in provides.