Okay, so how do you do this if you have to have the patch to get on the internet safely and you can't get the patch without getting on the internet?
That would be the Question Of The Day (TM), wouldn't it?
Is 'whistle past the graveyard' a valid answer?
I should have taken more time to answer your question. Seeing ShadowAce's post caused me to come back for a serious suggestion:
1) Wait several weeks/months for MS to come up with a stable PROVEN patch in downloadable form.
2) Boot into another OS and download it to burn to a CD.
3) Nuke your installation with a HD reformat and reinstall XP from scratch with your system disconnected from the internet.
4) intall the patch from CD onto your virgin system.
5) Only then enable networking.
In the meantime, disconnect your modem anytime you are running Windows and only browse using something like Knoppix.