I just downloaded version 1.0 and saw the Help text on the Settings, Catalog & Pricing tab, for "Prepend links with base page" seems to be backwards. It says
"This will only apply to tags & categories.
Yes: http://yoursite.com / product_category / YourCategory
No: http://yoursite.com / base_page / product_category / YourCategory"
I'm not sure if it does what the Help text says (backwards) or what the option actually says.