How could I display the Windchill Object Name for a graphic in my Editor window?

It sounds like the graphic name you wish to display is only contained in Windchill, and not available in the XML? So you're linking from some sort of image library that already has all the relevant metadata? In that case there are two general solutions: (1) have Windchill put the graphic names into the XML; (2) have Arbortext lookup and grab the graphic names. Ideally you could have some sort of checkout hook script do the necessary work. It doesn't sound very simple, although I hope someone else can prove me wrong!