I rewrote build.xml:254
The donload.eclipse target will work well.
<target name="download.eclipse" depends="download.eclipse.check" if="eclipse.not.available">
<echo message="Getting Eclipse ..." />
<mkdir dir="${install.home}/lib"/>
* <get src="http://archive.eclipse.org/technology/epp/downloads/release/helios/SR2/eclipse-java-helios-SR2-${download.type}.${download.extension}"
dest="${install.home}/lib/eclipse-java-helios-SR2-${download.type}.${download.extension}" />
</target>