Windows XP: How to turn on your firewall.
http://www.microsoft.com/protect/computer/firewall/xp.mspx
BTW, you'll need to upgrade to SP3 by 2010 or you won't be able receiving
vital and pertinent security updates/patches for your WinXP operating
system.
Why Service Packs are Better Than Patches.
http://www.microsoft.com/technet/archive/community/columns/security/essays/srvpatch.mspx?mfr=true
Description of Microsoft Office XP Service Pack 3
http://support.microsoft.com/kb/832671
Steps to take before you install Windows XP Service Pack 3
http://support.microsoft.com/kb/950717
Windows XP Service Pack 3 Overview
http://www.microsoft.com/downloads/...ad-bc34-40be-8d85-6bb4f56f5110&displaylang=en
Information about Windows XP Service Pack 3
http://support.microsoft.com/kb/936929
The hard disk space requirements for Windows XP Service Pack 3
http://support.microsoft.com/kb/947311
Some third-party programs may experience a change in functionality after
you install Windows XP Service Pack 3
http://support.microsoft.com/kb/947309
How to obtain the latest Windows XP service pack
http://support.microsoft.com/kb/322389
Good luck