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No, you can get about 1 or 2 songs on it. I recommend you get a memory card
All of it
I would recommend trying to use the memory card on other phones/computers to try and determine if the memory card is faulty.
I would recommend 1 gb.. the LEAST i recommend is 512 and that you sohuldn't have...i have 3 gb :p
You can't ... Well, you can get a new phone. I would recommend a BlackBerry