So it's not a internet driver as such that you need. It's either the Ethernet connection Driver (Motherboard) or a wireless card driver which will give you access to the Interweb's....
Try and find out what motherboard you have and I'll source you the driver which will give you a connection,
Help finding you Mobo model number:http://www.intel.com/support/network/sb/cs-008441.htm
Or use: Windows System Informationhttp://www.gtopala.com/