Login page navigation

Hi

We have done login portlet customization in WebSphere Portal v6.1 using RAD 7.5
After successful login, how can i navigate to separate pages according to the user previleges ie according to the user roles-groups.

Please help me in finding solution

Thanks

Please go to this link and click ont puma scenarios.pdf available. This information should answer your question.
Thanks.
[url]http://www.ibm.com/developerworks/websphere/zones/portal/proddoc/dw-w-pumascenarios/index.html[/url]