Esto es lo que dice la licencia:
Cita: License
To use the directory script completely free of charge, the Biz Directory links at the bottom of the pages must stay intact.
You may customize the script design and structure to suit your web site needs.
You may not distribute this script or accomplish code modifications without permission.
No dice quién es el propietario de los derechos, ni forma de contacto, ni nada, sólo eso.