1. A network CS comprising: a central CS remote from a first RS; a plurality of local CSs including a first local CS; said first local CS logging transactions occurring at POS in said first RS; said central CS storing a first set of image objects associated with marketing SVG files previously transmitted from said central CS to said first local CS; said central CS designed to associate with a set of first local CS CIDs a set of marketing SVG files, thereby forming a first CID/SVG targeting set for said first local CS; said central CS designed to determine from image objects associated with marketing SVG files in said first CID/SVG targeting set and said first set of image objects, a second set of image objects not previously transmitted to said first local CS; and said central CS configured to transmit said second set of image objects to said first local CS.