Enabling Promiscuous Mode on Gigabit LAN Adapter?

[Dave Odom]

I have an HP gigabit LAN Adapter (NC7781) and I would like to put the interface in promiscuous mode to support an enterprise web content filtering software product I'm installing. I'm not sure if the card supports this and cannot find any options under Win 2k network properties to enable this mode. Is there a registry setting that needs to be modified or a set of drivers to download to enable promiscuous mode? The only documentation related to this that I can find was TIS11261 (which lists the adapter card under applicable products and environments).
(http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=tis11261)

Dave