After upgrade to M6 - Error 404: ProxyServlet: /jazz/web

Installation is on RHEL 4 WS with DB2 and Websphere 6.1.

/jazz/web and /jazz/admin return 404 error
/jazz/setup makes it to 2nd page, but everything is greyed out.

SystemOut.log shows
Error while adding servlet mapping --> /* Please set fileServingEnabled=false in the ibm-web-ext.xmi file which is under WEB-INF folder.

NOT HELPFULL! Which file does this error refer to???

-bash-3.00$ slocate ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/installedApps/wsmmartinlnx64Node01Cell/DefaultApplication.ear/DefaultWebApplication.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/installedApps/wsmmartinlnx64Node01Cell/ivtApp.ear/ivt_app.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/installedApps/wsmmartinlnx64Node01Cell/jazz_war.ear/jazz.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/wsmmartinlnx64Node01Cell/applications/DefaultApplication.ear/deployments/DefaultApplication/DefaultWebApplication.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/wsmmartinlnx64Node01Cell/applications/ivtApp.ear/deployments/ivtApp/ivt_app.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/wsmmartinlnx64Node01Cell/applications/jazz_war.ear/deployments/jazz_war/jazz.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/wsmmartinlnx64Node01Cell/applications/isclite.ear/deployments/isclite/wasportlet.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/wsmmartinlnx64Node01Cell/applications/isclite.ear/deployments/isclite/isclite.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/wsmmartinlnx64Node01Cell/applications/isclite.ear/deployments/isclite/WIMPortlet.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/wsmmartinlnx64Node01Cell/applications/isclite.ear/deployments/isclite/adminredirector.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/wsmmartinlnx64Node01Cell/applications/isclite.ear/deployments/isclite/ISCAdminPortlet.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/profiles/AppSrv01/config/cells/wsmmartinlnx64Node01Cell/applications/isclite.ear/deployments/isclite/iehs.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/systemApps/filetransferSecured.ear/filetransfer.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/systemApps/filetransfer.ear/filetransfer.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/systemApps/isclite.ear/wasportlet.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/systemApps/isclite.ear/isclite.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/systemApps/isclite.ear/WIMPortlet.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/systemApps/isclite.ear/adminredirector.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/systemApps/isclite.ear/ISCAdminPortlet.war/WEB-INF/ibm-web-ext.xmi
/opt/IBM/WebSphere/AppServer/systemApps/isclite.ear/iehs.war/WEB-INF/ibm-web-ext.xmi