Cheers Stefan for telling us about this. Tweak-XP v1.27 is available for download. This new version includes lots of improvements, new features and tweaks - it's a kind of major version update although just the minor version number has increased. Here are the details:
Lots of new tweaks and a new tweak section added (Windows tweaks II)
new tweaks added to the modem tweaks and hardware tweaks section
Wanadoo and Tiscali modem tweaks added
Processor check-routine tweak added to the hardware tweaks