trying to set a background image

    As stated in the subject I'm having difficulties in setting making a
QuickRpt that have a background (size large, that means the whole page)
    If I'm not using any bands it works with a simple TQRImage but when I
set a Detail band it remains under the image.
    I tried 'send to back' and such but no luck.
    Can someone give me, at least, a clue?

    Thanks in advance. Please help me.