Without going back and looking, I think that I remember disabling automatic Windows updates when I used NickN's guide to set-up XP. Today I got a message from NOD32 that my system was out of date.
I went to manually update and when I click "check for updates" I immediately get an error saying "Windows Update Error the page cannot be displayed."
I have always just allowed Windows update to get the updates automatically. How do I make this work again?