MSI K9N SLI V2 (nVidia nForce 570) mobo - can't find drivers for LAN

Hello,

I have purchased this motherboard:
http://www.newegg.com/Product/Prod [...] 6813130168

I installed Windows XP, and the driver CD only has Vista drivers. I need drivers for the on-board LAN and the on-board audio. I googled and found some drivers here: http://www.nvidia.com/object/nforc [...] _9.16.html

But when I run setup.exe, the nVidia splash screen comes up briefly, then the "InstallationShield is preparing a wizard to guide you through the installation process" window comes up briefly, and then the window closes and nothing else happens. I found a forum thread where a guy had the same thing happen to him, and there were no replies.

I tried Add Hardware and used the motherboard cd, despite Vista drivers, and the drivers were installed but would not work.

Can anyone help please?