TweakGuides.com updated their Tweaking Companion
A quote from the article:
>> TweakGuides Tweaking Companion Updated
The TweakGuides Tweaking Companion for Windows XP has undergone a major revision, bringing it up to Version 4.0. The guide has not only been updated for all the changes resulting from XP SP3, it has also had a significant number of additions and improvements to ensure that along with the Vista version, it remains the most comprehensive, accurate and up-to-date system and OS optimization guide available.
>> TweakGuides Tweaking Companion Updated