Want to composite the images, I think you need a image combining program~~
you can have a try for "
Picasa" or "
photo collage studio", which i have always used for image joining and compositing...
You should use the part of "picture collage" in Picasa, and it's free; photo collage studio is professional software, it provides many
composite layout templates, you just need drag your images into the template. Different layouts decide the image numbers you can put into!
Hope my tips can help you to edit and composite your images!