ps cs3 how do add the background image

To build a layer, the background on the new layers can be a

to drag the background to add layers, the arrangement to the bottom on the line

Method 1.Documents / placement Method 2.File / Open / open after the / window / arrange / [horizontal] [vertical] Tile / select the move tool, drag over.

you want to import the background color or gradient, or, if the former is a direct dragged, behind the new layer, gradient coloring