I think you should put in a request to the help desk. I went to the auctiva template creator and noticed that when you look at some of the templates in design view, some of the picture gifs are missing, the same way your template is missing bits.
So I think it is a error with auctiva templates that have gifs in them.
As for your template being to large for the screen. I agree, you have to scroll over 2 or 3 inches to view it. This might be because of the way you have your picture layout.
When you put 2 the 400 x 300 click to enlarge pictures side by side they push the screen out. Try putting the pictures vertically instead. That might help.