i dont have that problem with my scripts because I use the correct syntax for the PROPERTY_BOOL.
In the Info_camera_node script, this line is wrong:
group:AddProperty("starthere","",PROPERTY_BOOL,"Start here")
it should be:
group:AddProperty("starthere",PROPERTY_BOOL,"","Start here")
which is why you get a weird string text box instead of a checkbox for a boolean selection