The URW fonts are installed by a program called Itranslator which is available at http://www.omkarananda-ashram.org

you can install the above program or
copy these files into your fonts** directory

or, download all of them in fonts.tgz [220K]

**   on windows-xp: the fonts can be copied into C:\windows\fonts\
on Ubuntu Linux: 'gksu nautilus /usr/share/fonts/truetype' invokes the graphical font installer