Seattleannie go back to page 17. I didn't dig into the link, but supposedly there is a mod that is needed to get dropdowns to work in zencart 1.5.1. Also there and around are some other discussions about upgrading from legacy software and others trials and tribulations with this mod. (Fyi, if you didn't already know, this is a tricky mod to program/work with.) Also the reason I'm not sure which mod I used in my cart is that at the time I had downloaded like three different mods,expanded them in my workimg directory, but only installed one of them. I believe it is this mod though, because of the dropdown listing of "products with attributes stock" that is in my admin panel.