Installing MAC Client from iPrint Printer List Web Page completes the install, but after closing and loading a browser then opening the web iprinter list I'm ask again to install the client.

OS version: Mac 10.5.7
iPrint Client version: 4.40
Latest Foomatic filter script and ESP Ghostscript installed
NW 6.5, SP7
NDPS Mgr 3.02f
NDPS Broker 3.0.12