Edit the ContactInformationTemplate so that it tries to include a picture for each contact. If the tiddler name is, for example, JaneDoe, and there is a tiddler called JaneDoe/Picture, Jane's picture, at most 300 pixels wide, should appear at the top of the tiddler. No error should be displayed if such a picture doesn't exist (hint: a filter operator called is[tiddler] will come in handy).

Add an image for one of your contacts and confirm that everything displays as expected for contacts that have a picture and for contacts that do not.