Thanks for the quick response! Just a little further info. There are six catagories listed by Stanza:
All of these categories show the same behavior, ie. they display correct subcategories (for example By Publishers displays a list of all publishers) but selecting that subcategory brings up the Catalog is Empty message. Is this behavior part of the bug you mentioned as well?
BTW: Thanks for all the work you've done on this project. It's an amazing software package!