Hi Therese,
I'm, not familiar with ImageReady, although I've just been readiong a couple of tutorials about it. The first thing that springs to mind is the stacking order of the elements. I'm not sure if this is critical, but elements 3 and 7 seem to be incorrectly stacked.. ie. they're sitting on top of higher elements. In the case of 3, this sits on top of 4, which could explain the lack of the horizontal banner, and slice 2 is missing.. possibly from being stacked before 1?
Perhaps the first thing to try is to take down all the elemments and restack them in order from element 1 onwards.
Again, I'm not familiar with the application, so hopefully someone else knows more here..
Cheers
Liam