In the WLWriter 2009, the 'Instant Photo' Border option when used, puts a border like an instant photo but
why does it shows only a part of the picture? Is it supposed to be this
way?
It's cropped because that aspect ratio is what "instant photos" in real life look like. The Polaroid plugin allows you to do different aspect ratios but I didn't like the way that looked.
Ideally WLW would let you specify separate crops for the inline version versus the link-to image, but that's not something we offer today.