Update. I hope I fixed problem: owners of localized versions of WM5 were unable to install LooxLight. The error message is much more detailed now - it must help to understand cause of the problem if the problem still exists.
Zipped CAB file (2007-02-03).
New versions and latest news about LooxLight will be published right here.
Another project helps reduce power consumption on Fujitsu-Siemens Loox N560/C550.