You do have an alternative, it works, but you won't get the code. Its Codejock Calendar Control. It does it all NOW, it works, and it can give you the most current look and feel for a calendaring program.
I love included classes with FWH, but to be fair, this is a very complex project. Should Daniel stop work on everything else to do this ? I don't think that is fair. If you want a really good calendar class, try working with the 30 day trial of the Codejock calendar, and if it meets your needs, the cost is not that great.
If Daniel were to sell the code, then he would be asked to continually enhance it, and I'm not sure that is fair right now. It would be a whole lot of time and work, and it would prevent him from doing what other things are already on his agenda.
I don't want to offend ... I just think there are workable alternatives out there now, and several of us already have moved in that direction.