Logical to Physical Mapping

Newbie to the Analytical Workspace Manager v. 11.1.0.7.0 and using Oracle Database 11g Enterprise Edition Release 11.1.0.6.0. Installed the global sample schema and associated objects. Created the workspace in AWM and I am able to see all cubes and dimesnion objects. I am now trying to do the logical to physical mapping of the dimension objects with the tables that I imported into the global schema. I right-click on the Channel dimension, but I do not see the Mapping option. I am unable to launch the mapping canvas. All I see is Maintain, Analyse, Set Security, Save, View Data and Delete. Am I missing something in the installation?
Thanks in advance for your help.
-ST

I also found that when I try to expand the "+" next to the Channel dimension, I get the following java error in the console.
Exception in thread "ExpansionThread" java.lang.NoClassDefFoundError: oracle/security/xs/XSPrincipalException
at oracle.olap.awm.navigator.node.olapi.UDimensionNode.getChildren(Unknown Source)
at oracle.olap.awm.navigator.node.BaseNodeModel.refreshData(Unknown Source)
at oracle.olap.awm.navigator.node.BaseNodeModel.dTreeItemExpanding(Unknown Source)
at oracle.bali.ewt.dTree.DTreeDeferredParent.__fireExpansionChanging(Unknown Source)
at oracle.bali.ewt.dTree.DTreeDeferredParent.setExpanded(Unknown Source)
at oracle.olap.awm.navigator.node.BaseNode.expandHelper(Unknown Source)
at oracle.olap.awm.navigator.node.BaseNode.access$400(Unknown Source)
at oracle.olap.awm.navigator.node.BaseNode$ExpansionThread.run(Unknown Source)
I am unable to view the defined hierarchies
Thanks.

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hi
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http://help.sap.com/saphelp_erp2005vp/helpdata/en/25/ab3a57df3b11d189fc0000e829fbbd/frameset.htm
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