Hello Beads...,
I went and looked at the the last two auctions you have posted here and the main culprit for why you are having to scroll left and right is because you have the store window inside the template. Which I think looks great, but aside from that, if you are concerned that a person with their monitor set at 800px wide will have to side scroll ( by the way these people are pretty used to scrolling left and right) then you will need to take the store window out of the inside of the template. To explain exactly what is happening, the left and right cables on the template occupy 100px each, the gut or your description and images are set to occupy 95% of the inside of the template, so combining the store window which is approx. 715px with the outer images on the template the total width of your template is roughly 915+ pixels, that will never fit on a screen with a resolution width of 800. I hope that explains things clearly.