Using ACE ORB Event Service on HPUX 11.xx from Java

Question

I have an Avaya PDS12 using HPUX 11.11 which I have installed an old version of ACE ORB on. I am trying to develop a Java client that uses the event service to get notification of calls being placed on the PDS (delivered through the event service). Here is the exception I get when trying to narrow on the event service:

org.omg.CORBA.BAD_PARAM:   vmcid: 0x0  minor code: 0  completed: No
at EventServer.DialerEventServerIFHelper.narrow(DialerEventServerIFHelper.java:62)
at org.avalutions.recorder.RecorderDaemon.getDialerEventServerIF(RecorderDaemon.java:85)
at org.avalutions.recorder.RecorderDaemon.main(RecorderDaemon.java:155

Any suggestions/help/links/etc are greatly appreciated