OK. Back to basics.

1. Did it ever work?

2. Does the product mention 10.3.9? I find many of the PPC machines to not be supported.

3. Not to leave you without a WiFi solution, I just picked up this thing -> http://www.amazon.com/NETGEAR-WNCE2001-Universal-Internet-Adapter/dp/B007CO5DZ4/

Item 3 connects almost any thing to your WiFi.