Check what is the maximum size card the phone can take. Just about every electronic device has a limit to its maximum size memory card it can take, the only thing I can suggest is buy a smaller one im afraid. Oh, just found it... it says on this site a maximum of 1gb, so if you are trying any larger im afraid it wont work. If your not, id go back with your snotty complaint. You say you've programmed all her numbers in, but if you save the numbers to that sim card (if it pay as you go) or if not get an old sim card (it will probably need to be on the same network, and copy the numbers to that, then you can use them on the new phone.