When you upgrade ReportNet 1.1 to Cognos 8, you must update the portlets using the latest portlet package file installed with Cognos 8.
For a WebSphere portal, use the CognosBIPortlets_c83.war file
located in the c8_location\cps\ibm\portlets directory .
For SAP Enterprise Portal 6.0, use the com.cognos.cognos83.epa
file located in the c8_location\cps\sap\package directory .
Importing the new package into the portal creates a new and distinct set of Cognos portlets and resources. The upgraded portlets are not compatible with ReportNet 1.1, and the personalized settings are lost. You must configure and test the new portlets as required for Cognos 8.