Steve of WindowsXP.nu sends word that Microsoft have updated its Technet page with useful information and Tips for IT Professionals/Advanced users. Among the tips added are:
How to Activate Windows XP Using an Unattend.txt File
How to Use the Language Bar in Windows XP
How to Check User Profiles on a Windows XP-Based Computer
How to Change File Associations in Windows XP.doc
How to Create and Configure User Accounts in Windows XP