Dunno the differences between the Intel 825xx 10/100 and the Pro Network connections but I suspect the Pro Network driver won't work with 825xx hardware.
Do some googling and you'll find a Win 7 driver for the 825xx 10/100, eg here. It may or may not work with Windows 8. I don't know that site and I take no responsibility if that driver doesn't work, installs malware or otherwise messes up your system. 