My favorite snippet:
Customers without reliable Internet connections who wish to obtain Service Pack 2 on CD can order a free disc from the Microsoft® Web site as Service Pack 2 is rolled out worldwide.
I'm also under the impression that Microsoft will make XP SP2 CDs available at retail for no charge [á la those AOL CDs I still see everywhere].
In the meantime, visit http://www.microsoft.com/protect, turn on XP automatic updating, and get some antivirus software. [Or buy a Mac.]