Hello Mayer,
1. Please download the VB.Net sample from the following link -
http://websamples.syncfusion.com/samples/Diagram.Windows/F62867/main.htm . As I have mentioned in earlier update, there is an issue with renaming the first node in the palette.
2. DT incident is DirecTrac incident. Direct-Trac enables you to create and track technical support incidents. You can register for this by visiting the following link - https://www.syncfusion.com/Support/DirectTrac/logon.aspx?URL=/Support/DirectTrac/default.aspx
Once you have registered in this, you can post your queries under the selected products. Please let me know if you have any questions regarding this or I can be of any other assistance.
Thanks,
Meera.