Hi John,
I played a bit with the trial version, but couldn't get it to work properly even in c#, not to mention that it didn't add itself to the VS toolbox, so I can't add it to a X# form. Does the c# sample work fine for you in VS? If yes, then I suggest at least for now, for as long as you are evaluating the control, just keep the control in that VS app and use it from your X# app.
To do that, go to your XIDE app, select Add references, Browse, then navigate to the samples' \Bin folder (should be something like \Solutions Schedule for .NET (SSNETS)\Samples\C#\dbiScheduleTimeTypes\dbiScheduleTimeTypes\bin\Debug) after you have compiled it, chose all files (*.*) in the open file dialog and pick all the 3 dlls in there, together with dbiScheduleTimeTypes.exe. Also from the GAC page, add references to System.Drawing and System.Windows.Forms.
Then, anywhere in your app's code (for example in a button click method), add this code:
LOCAL oForm AS dbiScheduleTimeTypes.Form1
oForm := dbiScheduleTimeTypes.Form1{}
oForm:ShowDialog()
Does the control appear correctly in the form now, from inside tour X# app? If yes, for now just experiment with it (in the c# sample) to see if it suits your needs, of course you can also pass objects/parameters to this c# library from your main app. And if you decide that the control is good enough for your needs, then we will further investigate how to add it to a X# library or your main app directly, instead of using the external c# app for it.