Broadcom Netlink NIC driver required

Hi
I have clean installed Windows 8 Pro on my HP DX7400 desktop which has a Broadcom Netlink Gigabit Ethernet NIC (part # BCM5786).

All went well until I tried to connect. Win8 has no driver for this NIC, and Broadcom say it is EOLed and not supported on Win 8.

I used a wireless connection to connect to the www and tried Windows Update and "Update Driver" in Device Manager. Update Driver searched and seemed to find a driver but it failed to instal due to something wrong with the INF file.

Anyone know of a driver which works with Win 8?

Thanks

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