Dude, the image you are seeing happened millions of years before. It just that the light took so many years to reach our hubble telescope. Also, the smaller one will completely merge into the bigger one in next billions of years. The exciting thing, is even the two galaxies collide, the objects (stars and gases) inside galaxies rarely collide because they are thousands of light years away from each other.

Read here, if you are interested.
http://antwrp.gsfc.nasa.gov/apod/ap080420.html