ITunes Store?

Ok i got this gift card and i went to the itunes store to buy some songs! i cant find it anywhere! it says to go below accound and click on prepaid card where is it on the screen please help!|||On the homepage of the iTunes store click 'redeem.' Then type in the code on the back of your card.|||On the right side of the iTunes store, the top box in the column has a link that says "Redeem".|||You must redeem ur giftcard first with ur Account... That's simple|||when you purchase the item there should be a place in the payment section where you can put the gift card in. UNless you have the account set to your credit card.