I am using a vodafone sims card on my current cel phone. I want to buy from a friend her LG Cookie and was wondering if Im going to be able to use my vodafone sims card. She uses Mobile sims. She is going to keep her sims card but did say she would sell it to me if i wanted. Id like to keep my vodafone card because of the phone number Ive had it for about 1 yr. Thanks...