If I remember correctly from the version on nes, when you accessed the item/triforce screen you had to push an additional button I think it was select to access moving/choosing items. That's if I remember correctly, and I'm not sure that I do it was almost 15 years since I played it. Or maybe they made it so you have to use the shoulder buttons to scroll through the items, I doubt it because I thought nothing was changed as far as the gameplay when they ported it but you never know. Try every button, if that doesn't work, try a faq for it on Gamefaqs.com, or email Nintendo.