I just have 1 picture i wanna transfer to the computer. I lost my USB Cable. When you click menu on the picture it has an option to copy to card but it says no card inserted? Then when I put the card in i can't access the internal memory. How to do this without an USB cord! Or, if I do have to get a USB cord for sure, how do I know what kind to get?? Ive already looked in the manual theres nothing about it in there, Please help!