Need a grand gesture of help on the Java Piccolo framework.

I am in this semester developing a project on basics of querying dynamical hierarchical information visualised in a flat network with overview and detail.

I wanted to use the Java Piccolo framework with it but I keep getting errors when I try to launch the build.sh script and all but one .jar file, although my JAVA_HOME variable is set and version 1.5 is installed. Just using the walkthrough on their getting started site renders some errors (the object that is getting created needs to implement a long variable or something).

It's a very exciting framework for visualization and I would so much like it to work, so we can get started on a prototype right away but I am getting lost here as to what I am doing wrong.

Does anybody have any experience with it, or are you even able to install and use it via. the walkthrough?