Just go to the site and find the driver for the ethernet adapter then transfer that over to the Vaio and try to get it online. Once it is, you can more easily find the others.
Which driver do you want? Sony has different Support sites for just about eveyr country in the world and your model number doesn't mean anything to my local site here in the UK. When you know which driver you need, go to your local Sony Viao support site - Google for that if you can't find it.
Make sure you only go to that site and not to one that promises you drivers if only you let it look in your system. Generally, they can't be trusted. [/#000ff]
Just go to the site and find the driver for the ethernet adapter then transfer that over to the Vaio and try to get it online. Once it is, you can more easily find the others.