[Azad0r]

To make a building require an upgrade you must enter these lines of code:

	Options				= NEED_UPGRADE CANCELABLE
	NeededUpgrade		= <insertupgradenamehere>

Heres an example of this - the haradrim palace requires the fire arrow upgrade:

CommandButton Command_ConstructMordorHaradrimPalace
  Command          = FOUNDATION_CONSTRUCT
  Object           = MordorHaradrimPalace
  Options	   = NEED_UPGRADE CANCELABLE
  NeededUpgrade    = Upgrade_TechnologyMordorFireArrows
  TextLabel        = CONTROLBAR:ConstructMordorHaradrimPalace
  ButtonImage      = BMHaradrimPalace
  ButtonBorderType = BUILD ; Identifier for the User as to what kind of button this is
  DescriptLabel    = CONTROLBAR:ToolTipMordorHaradrimPalace
  Radial           = Yes  
End

Hope this helped, but I still need the answer to question 1.