How to enable ResourceOrientedWorkItemAPIv2 on RTC server

Friends,

I am having a problem wherein i am not able to extract Workitem related information through ResourceOrientedWorkItemAPIv2 as explained by http://jazz.net/wiki/bin/view/Main/ResourceOrientedWorkItemAPIv2

When i tried following script, I am getting below content

Contents of wi.sh:
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URL="https://localhost:9443/jazz/resource/itemName/com.ibm.team.workitem.WorkItem/821"
curl -k -b $COOKIES -o "wi-821.json" -H "Accept: application/x-oslc-cm-changerequest+json" $URL

Response:
------------
&lt;H1&gt;SRVE0255E: A WebGroup/Virtual Host to handle /oslc/workitems/5339.json has not been defined.&lt;/H1&gt;&lt;BR&gt;&lt;H3&gt;SRVE0255E: A WebGroup/Virtual Host to handle rtcoptimapp1.princeton.usnj.ibm.com:9443 has not been defined.&lt;/H3&gt;&lt;BR&gt;<I>IBM WebSphere Application Server</I>

I think i am missing some configuration on my server, Can you please point me to the information to enable the same.

Thanks &amp; Regards,
Aruljothi.S