There's a Windows XP SP2 chat scheduled for Wednesday, August 25th at 3:00 PM PST. Here's link to the chats page:
Windows XP Service Pack 2
Join Microsoft Experts in an online chat to discuss Microsoft Windows XP Service Pack 2 (SP2). Learn what you need to know about deploying SP2 for Windows XP Home Edition and Windows XP Professional.
You can add this event to your Outlook Calender by clicking here.