In case anyone has problems getting this stuff to work here is how I did:
Grabbed Ant 1.6, Windows->Prefrences->Ant->Runtime removed the ant plugin jars and added 29 ant jars from ANT_HOME/lib, EXCEPT the two xml jars (xercesImpl.jar & xml-apis.jar). Then set ANT_HOME to my ant dist directory (C:\apache-ant-1.6.0\lib). That got Ant 1.6 working.
Then I added the following to the top of my build.xml file: