Hi,
The sorting on that listing is done on the name of the element to which the use subscribed.
It can be either a product or a variant.
If the customer subscribed to a variant and that variant doesn't have a name, then the sorting will be wrong.
I've added a patch on our end to properly take inot account the main product name for variants.
If you download again the install package on our website and install it on yours, it should work properly.
There is however no system to export a list of the products in the wailist.
It would require to write a complex MySQL query in your database via your PHPMyAdmin.