1. that page is the result of clicking the brand image on your brand carousel. Don’t you have a separate brand page to pointed at?
2. Just like the way i created for product tags, used the cloud tag option and picked the brand attribute.
3. will you consider adding this feature in the future? it makes more sense to have it like that than listing them before or after the product title with image. I noticed that some who use your theme are listing the manufacturer there ( is it standard?)