Importing the Idoc for BPM communication- SAP PO 7.4

Hello Experts,

I'm trying to modify the idoc as per the instructions in the below blog/ help document however I'm unable to see the idoc structure in the messages tab of the modified wsdl. ( see the screen shot below). I did everything as per the blog/help document with regards to adding the xmlns and target namespace.

http://help.sap.com/saphelp_nw73ehp1/helpdata/en/f1/c2c30c186e4bc3b3d260c4de609a80/frameset.htm

Idoc to SAP BPM Scenario

In the below screen shot you can see the wsdl modified as per the instruction.

when I go to messages tab I don't see the structure :

Do I need to modify the schema to make this work. has any one done this ? Please help with the solution.

Thanks

Arvind