I found this really neat tutorial on how to do cool animations written back in August 2009 (by Rockybound Connections) that uses Silverlight 3 and the toolkit. It uses a TransitioningContentControl that I can't find in Blend 4. (using SL4 and Blend4). I think I have everything installed and I do have Silverlight tools 4 for Visual Studio 2010. All I have that starts with trans is:
These are all from Telerik and not in the documentation (at least that I can find).
Where is this control or what replaced it? Does Telerik have something that does this (that is documented)?