SSO with BSP on SAP R/3 WAS6.20 (cProjects)

Hello,

we have problems to set-up the SSO scenario from EP6(SP13) to an BSP-application running under WAS6.20 on SAP R/3 4.7 Server. We configure all components in the transaction STRUSTSSO2 (incl. import of EP-server cert.). SSO to normal SAP/ABAP transactions run´s fine - but by entering BSP-application via BSP-iView (cProjects) already an WAS-Browser pop-up windows comes up to ask for UID/PW. For WAS6.40 I know there is additional ACL-Setting on the J2EE comp. necessary...Is there any other configuration to do ???

Helpful links / comments would be very nice...

regards

mario