nforce(2) users can't use the 2.6 livecds because there's no driver on them for the network card. Now there's an open-sourced driver and it's included in the mm and gentoo-dev sources, as well as hotplug support, maybe now would be a good time to add it to the livecd? I haven't checked *the* most recent 2.6 livecd (just the second-most recent) so apologies if this is done already.
Seems to be in the 20041028 livecd (as in, 1 day after this bug), again not sure about the livecd before that.