mobile phone Samsung - T-Mobile

[gardenmad]

Help, please, I'm slowly going mad. My phone was dropped and the picture was cut in half - it would not work, so I bought a new one, and I can't use it. There are not many helpful instructions with it, should I go to Samsung's website and search, or can anyone help me? I put my old sim card in - it is compatible, and when I try to put numbers in it says sim card full, delete some, but there are only three to delete! I am going mad here. Can any one help, pleeease!