Yes you can and all you need to do is take it where you bought it from: for instance, if you got the card from Walmart and put money on it there then you can refill it at Walmart. (There are also other places where you can refill it like an Apple shop, Target, Kmart, Exc )
Go to account, and enter your credit card. Or, use a gift card.
An Itunes account is free
you can't. you can only get games on itunes if you have an account.
I suggest you reinstall ur iTunes, and then reset ur iTunes account password to see if you can log into itunes. If it still doesn't work. You can create a new iTunes account. Hope it helps.
Updating the iTunes software will not affect your existing iTunes account or music library.
no they wont Apple will let you use an iTunes account to purchase items from their iTunes store.
Counsel my Itunes acc
iTunes accounts are free to have.
Register an account with the iTunes store.
how do you unlock a itunes account and how do you delete your the one you have a create a new one
no, you don't need an account.
No, you will not lose your account money. The money you register is related to the account, not the actual iTunes software.
No. Your iTunes Store balance will remain on your account, but you should update the email address associated with your iTunes account to keep your info up-to-date.