Bought a Dell D600 Laptop its been wiped of all drivers.

ive managed to do all the display and sound driver but cant get wireless or ethernet driver working! i thought if i plugged the yello ethernet cable from my router it would automaticly sort itself out but no.

cant even go wireless i went onto Dell Drivers site and cant find a ethernet driver there?

i know a lot of people use this laptop on here as its a good mapping laptop!
any help?