you could try the vista x64 drivers
listed on that page. otherwise, go to intel's website and run their driver
update utility for your chipset drivers. that utility should also detect your wireless LAN adapter.
do the same thing at nvidia's website for your graphics driver.
your LAN is realtek 8139 family. here is a link to the download page: Realtek
here is an automated driver update utility. i've been using it with pretty good success. its free for now, but that may change: Welcome to SlimDrivers - Update Easily
after that, post a list of any missing drivers, and somebody here can probably hunt them down.