WinCalendarTime is completely free, you can redistribute it and/or modify it under the terms of the GNU General Public License (usually known as GNU GPL).
Icons used in the program are under LGPL and are extracted from the Crystal theme.
The installer is generated by the open source program Inno Setup.
The site, the program files and the CVS archive are hosted by SourceForge.
If you want to use the XHTML or CSS of this site, just ask me. The images used in the site are screenshots of WinCalendarTime or icons (under LGPL) extracted from the Crystal theme.