PC help

So here is a story:

I installed windows xp on an siemens scaleo L.
Because of that, proberly the network drivers has been lost, and when i plug in the internet cable, im not able to connect to the internet, the pc doesnt even recognice the cable. Ive found a download on the siemens website, but this dload is ofcourse only for vista( the original OS on the pc ).

What do?

xx