Brand module sorting

[CJH]

I've started using the Brand module and have two questions:

I cannot work out how the module is sorting the products within a brand. It isn't the first/last to be created, nor the number of products available (though anything out of stock appears last). Not alphabetical. How is the sorting arranged?

Which links to the underlying more important question that I hope an answer to the first part might help me with. There seems to be no way of sorting the products within a brand - is there any way of doing so?