I do not know what your product line number is to point you in the right direction.
However I am linking you to the Cisco linksys support page for your product LNE100TX.
Click the download tab and in the drop down menu on this page choose your hardware version number. It would be either 1.0, 4.0 or 5.1http://homesupport.cisco.com/en-us/wireless/lbc/LNE100TX
I do believe however that this NIC is rather old, its last driver update was in 2005 from what I can see, and the release notes mention Windows OSes up to Windows XP.
I do not even see Vista support listed, so you may be stuck with drivers for Windows 2000 or Windows XP.
Edited by MrBruce1959, 11 August 2010 - 04:26 PM.