Group items tagged

I have setup two different webstore with different catalog but the homepage content is the same.

I created some categories and assigned some products to it. But for some reasons, they are all showing "out of stock".

I have my primary domain at the public_html folder and a second domain in a folder under that.

I'm wondering if there is a benefit to uploading all three product images (base image, small image, and thumbnail) if the small and thumbnail are just scaled down copies of the base image.