bpm 7.3 single stack query

hi,

i am following william li example for BPM in AEX.

http://scn.sap.com/docs/DOC-28803

For message from PI to BPM i have created receiver channel - soap receiver,XI3.0 msg protocol

URL i am giving as

http://localhost:50000/MessagingSystem/receive/JPR/XI

with valid user id and password.

But messages are not going to BPM and failing in PI.

Which URL i need to use for sending msg PI(AEX) to BPM server.

1) http://localhost:port/MessagingSystem/receive/JPR/XI

OR

2) http://SAP PI Server name:port/MessagingSystem/receive/JPR/XI

OR

3) http://SAP Process Orchestration(BPM) server name:port/MessagingSystem/receive/JPR/XI

rgds