How to open an example
To use an example extract it into a directory of your choosing.
Open Monodevelop
Select File - Open.
Browse to the derectory that contains the example.
Open the file with the extension .mdp (MonoDevelop Project)
How to edit a GUI with Glade 2
After extracting an example into a directory of your choosing.
Open Glade 2
Open the file gui.glade.