Can you elaborate your question? Is the imported surface a "dumb" surface body, or is it a native surface body in SW? Also, you say "Planes", do you mean true SolidWorks planes, or do you mean actual surface segment? When you import a "dumb" surface body, you won't be able to see the planes.
You should be able to use the Move/Copy Bodies tool in SW to move the surface where you want it to be (in Features toolbar--you'll probably have to add it to your default tool bar to see it).