background images in rendering and in moive sences.

Ok… I’m new here.

I’m making a animated 40 minute movie that is sci fi and i want to know how to put in back ground star pictures that i made. they are png, and jpeg. I want to be able to put it into the scence and have my ship do their thing and render. Also how do you render with the picture staying in the rendered progect. and how does one get the vertex paint to stay on the image during rendering. and what does the gimp art thing do with Blender (howto).

I’m new to this and I am importing my ship from another 3d maker.

free movie and an open project.