1, not really quite sure what you want to do because theres many ways to stick images together, one inside the other, side by side, overlapped and blended etc...
However the answer is no because it cannot do this with any of its tools, you need an image layout application like... GIMP, Pixlemator, Photoshop, (or you could use Illustrator or InDesign in a push too), Also Photoshop Express online, or Picnik online too.