Version: 3.5.7 (using KDE KDE 3.5.7) Installed from: Debian testing/unstable Packages OS: Linux Free/Busy files in KOrganizer/Calendar have to be in the .ifb file extension, but (at least at my office) the employees' files are all in .vfb extension; Calendar cannot read/find these files and I never know when people are free or busy. I tried creating a link to one vfb as an ifb and Calendar was happy. This, to me, suggests that the file types are similar or identical, and therefor Calendar should be able to read and use them both, either by default or as a radio button (default would be better, since some may be of one time and others of the other type, make Calendar smart enough to use them both!) Thanks!
this should be working now in recent versions of KDE 4.x. freebusy should support .ifb, .vfb and .xfb