For other vegan products on the south shore, there is a small market called Kukuiula Market. It has surprisingly a lot of vegan and green products. They have brands like Seventh Generation, Amy's, Boca, Follow Your Heart, Daiya, Morning Star, etc. It really is more like a health food store.
For a complete review, please see my blog here: http://veganmiss.blogspot.com/2011/09/vegan-kauai-hawaii-part-one.html