Directory API - WSDL client

Hi All,
I am trying to create a simple program to edit and activate some channels in ID. The environment is PI 7.11 SP 6.
I tried to import the WSDL directly from WSNavigator and tried to create a Java proxy client. The wizard would not complete and it throwed me an error saying
IWAB0399E Error in generating Java from WSDL: WSDLException (at /definitions/import/wsdl:definitions/wsdl:import/wsdl:definitions/wsdl:portType/PolicyReference): faultCode=INVALID_WSDL: Encountered unexpected element 'PolicyReference'.:
I then tried to export the service interface WSDL and then tried to create the Client Java proxy components. This time the wizard completed but the packages imported are reporting eror mainly in LONG_Description.java (com.sap.xi.BASIS.Global package).Also the imported WSDL which was fine until I tried to generate the client now started complaining with error
Element type "xsd:element" must be followed by either attribute specifications, ">" or "/>"
The error points to this particular tag
<xsd:element maxOccurs="unbounded" minOccurs="0" name="ErrorMessage" type="p3:Text"/>
Any pointers to over come this would be highly appreciated.
Thanks
Jai

One step forward. When I create the client proxy, the packages created are
com.sap.xi.BASIS and com.sap.xi.BASIS.Global
The packages
types.api.server.ib.aii.sap.com and types.api.server.ibdir.aii.sap.com are not getting created.
Is this correct? This is not in accordance with the blog http://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/11653. [original link is broken] [original link is broken] [original link is broken]
Thanks
Jai

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