Show Cue System

Sorry if I am being silly,,(I may have missed something simple).......but I wish to have a video image up through a number of cue changes, whatever I try the image disappears as soon as I play anther cue.

Assuming you want the image to persist through several audio cues, have you set a display time or 'continuous' in the panel beside the image in the Editor? If you set it to be continuous it will persist until replaced by another image or stopped with a SFR cue.