This build can be downloaded from the i3Geo project section at the gvsig.org website , and it includes several new features.

i3Geo is an application for the development of interactive web maps. It integrates several open source applications into a single development platform, mainly Mapserver and OpenLayers, and it allows the user to have better control over the map output, allowing to modify the legend of layers, to apply filters, to perform analysis, etc.

For any doubt about this version you can use the i3Geo mailing list: http://www.gvsig.com/en/community/mailing-lists.