When attempting to make a build in Hudson for the first time, it complained of missing artifacts in the maven repo. I found that I had to configure the MAVEN_HOME/conf/settings.xml file to point to the maven repo by editing the localRepository element
Here's a reference for more details:
Once the initial build was working, I had to make additional changes to make maven do a 'clean package'
and perform a build everytime a change gets submitted to SVN as shown below: