The following is extracted from click here but only mentions wireless.
"You need a computer with Windows 98/98SE, 2000 or XP (Windows Vista™ - Livebox wired connection is currently compatible but wireless is not compatible with Vista. We are working towards fully supporting Vista), a CD-Rom drive and an Ethernet port. If you haven't got a wireless-enabled computer, you'll need a wireless adaptor. You can buy one from us when you join online. Please note that the current wireless adapter is not Windows Vista compatible."