How to style mp_product_content

On the store/products page, the descriptions of each product are non-formatted, and I can't seem to find mp_product_content anywhere to style it.(like it is on each single product page)

http://www.hickoryhillheather.com/store/products/
Also, on the single product page, the alt tag shows "View Larger Image" bit it doesn't bring up lightbox or larger image (And I do have "Show lightbox" checked.)
http://www.hickoryhillheather.com/store/products/arnold-promise-witch-hazel/

Thanks!