Hello,

 I was asked to make a three tier cake with repunzel going down the side of the three tiers...it looks like an edible image to me..So my question is how do I get the edible image on all three tiers with just one icing sheet?? I hope this makes sense

Do you have a link to a  picture?

If I am understanding you correctly, there are two options.  You can either stack the tiers like stairs so one side of each tier creates a single smooth, tall surface.  Or you can stack as normal and cut the single sheet in to three parts and attach to the sides.  From a distance away from the front it will still look like one single picture.  McGreevy Cakes has done a few blog entries on both styles.  I don't know if Cake Central will allow the links, but I will try to include them.  If they don't work, just google her & go through her blog entries.  One is for a Harry Potter cake, http://mcgreevycakes.com/a-harry-potter-cake-with-ruffles-and-painting/, the other is her most recent and is "a cake to help bring awareness" http://mcgreevycakes.com/a-cake-to-help-bring-awareness/

Hope this helps!