Admin Tab Was not visible after logging in Oracle BI Publisher

Oracle BI Publisher:
Admin Tab Was not visible after logging in Oracle BI Publisher. it was giving security Exception errors.
1: Config File Changes for the XMLP Server (
OracleBI\xmlp\XMLP\Admin\Configuration\xmlp-server-config.xml
OracleBI\xmlp\XMLP\Admin\Security\principals.xml
oc4j_bi\j2ee\home\applications\xmlpserver\xmlpserver\WEB-INF\xmlp-server-config.xml2:

2: Cryptotools to generate the XML file to store the userid and password for BI and Publihser admin in credentailstore.xml

3: change the security model to XDO and try with the default uid/pwd of BI publisher , in case if it gives the security Exception error

4: Once we login t the Publisher click on the Admin tab and then do the configurations for BI server & Discoverer

Thanks
BSK