categories not showing in directory/categories/offer

I'm probably missing something because I'm pretty new at this. I went into taxonomy and created a vocabulary called offer/want categories. I selected content types "offer" and "want" and under settings I selected mandatory, then created three terms. I added some offers and wants to the directory and categorized them. When I look at directory/print I see the listings under the appropriate category headings, so that part is good. But when I try to access directory/categories/offer or directory/categories/want (via Complementary Currencies menu) the pages are blank. I tried uninstalling and reinstalling and got the same result. How do I get the categories to show up on those pages? Thanks so much. It's a great module and I'm eager to learn all about it.