Step 1: Start the WebLogic Administration Portal
In this step you will open the WebLogic Administration 
  Portal to access the administration tools. If you completed any of the other 
  tasks in the WebLogic Administration Portal Tutorial, 
  the WebLogic Administration Portal is already open, and you can move on to Step 
  2 of this task.
To start the WebLogic Administration Portal:
  - Be sure your server is running. You can start the 
    server from a start script called startWebLogic located in the <BEA_HOME>/weblogic81/samples/domains/portal 
    directory.
 
  - Choose Start ->Programs ->BEA 
    WebLogic Platform 8.1 ->Examples ->WebLogic 
    Portal -> WebLogic Administration Portal.
 
  - Login using weblogic as the username 
    and the password. You should now see the WebLogic Administration Portal. 
    
