I want to know how to apply filters, for example put color, size, dimensions, price range, when you install the template by default brought them with some features, but I had to remove most of the products by default and disappeared the filter, which steps I must follow to create different types of filters.

The filters are not seen

http://lopezpuerta.mx/tienda/index.php?id_category=44&controller=category

http://lopezpuerta.mx/tienda/index.php?id_category=16&controller=category