Demo code including both WPF and Silverlight versions: PositionTracker.zip
To switch between the two WPF UIs look in App.xaml for the commented out StartupURI. The sample data includes resumes but not images. If you want to try out your own images they should be added to the SampleData/Images folder and referenced in SampleData/ApplicationData.xml in place of the current 01.jpg reference.
More information on the change notification memory leak that we discussed: http://support.microsoft.com/kb/938416
Demo code for layout concepts: Layouts.zip
Demo application code for WPF and Silverlight: PositionTracker.zip (see notes above)
Also check out my other blog posts here and at my old blog for other examples related to both topics. Thanks for coming!