Just more notes – I had a problem with the build putting the pluto-portal-driver-config.xml file in the wrong directory.

cd dev
csh new-apache.csh
cd ~/dev/pluto-1.1/
svn checkout https://svn.apache.org/repos/asf/portals/pluto/tags/pluto-1.1.3 pluto-1.1.3
cd pluto-1.1.3/
rm -r ~/.m2/repository/org/apache/pluto/
mvn install
mvn -DinstallDir="/Users/csev/dev/apache-tomcat-5.5.20/" pluto:install
cd webapps/pluto/WEB-INF
mv ../pluto-portal-driver-config.xml .