Sorry for the late reply, NIME 08 conference (
http://nime2008.casapaganini.org/) and some other events organized by InfoMus Lab (e.g.,
http://www.smcnetwork.org/summerschool/genova2008) took much of our time.
Unfortunately you can't have labels in the ImageScalarGraph with the current version of EyesWeb. We are working to improve the graphs in EyesWeb, so you can expect this and other features to be available in the next releases.
Paolo