Burns is a reasonably good food. That is, it doesn't contain anything nasty. It is, however, pretty low in meat content. With
any dry dog food, you're feeding your animal mostly on plant matter (be it grains or vegetables), rather than meat. Dogs, however, are actually carnivores, and should be consuming a diet that is predominantly if not exclusively meat (meat inclusive of bone, fat and organ meat, that is). Conversely grains/cereals of any form are a totally alien foodstuff...
Dry dog foods are also highly processed diets, and tend to be extremely dehydrating (naturally). So personally, I would go a long way to avoid feeding that as the sole thing in your pup's diet. Real, natural, normally hydrated food should be fed as well (that is, meat

).
A pretty reasonable option for you then, would be to continue feeding the burns kibble as a part of the diet, and topping it up with real meat.
If you wanted to look into a higher quality kibble (i.e. one containing more meat and no grains (though it does have large amounts of vegetable matter still)), I think the best one available to you would probably be Orijen. You can get that online from
http://www.zooplus.ie/shop/dogs/dry_dog_food