The OSGeo Live PDF was generated by GetInteractive and is contained in the osgeo-onepage-a4.indd file alongside the one page osgeo handout.
You may wish to contact GetInteractive and see if they can quickly make the required changes for us. One of our members here has an InDesign license and can edit also.
The goal was to keep the designer in their preferred environment due to coast. As it was Pim (and Anita) spent way to much time trying to get Scribus to work (sigh). At least this way we have the original files to work from.