I am working scd pro and the shop home image. What are the dimensional limits of the photo. It seems like everything I have tried is wrong. Either its too small and you can't see the detail, or its too large and it automatically centers and zooms in.

I think 250x250 for category images. Product images 300x300. You can hard code images into your page with a thumbnail then have them pop in Colorbox that's already built into the shop.
Extra images in Colorbox.

I'm looking specifically for the spotlight area photo. I have something worked out now, but it has a thin white line on 2 sides that I can't seem to remove.
You can see this at http://shopmichietavern.com/. The lines are on the right hand side and the bottom.

Have you messed around with the padding settings in SCDP?