how do you send a song to your mobil from your usb in your computer?

im not sure I understand ‘usb in my computer’ :S

im guessing you mean after plugging your phone into your computer via usb?

if thats the case, if you double click my computer (just computer on vista and win7) you will see your sd card or memory card and all you do is double click to open your phones memory and drag and drop your music into it…

if you dont have a folder called music then id surggest you make 1 and drag-drop you music into that.

if you mean usb stick/flash drive then its the same… you open your phones memory card/phone memory by double ciicking the icon in my computer, then just double click your flash drive icon in my computer and just drag-drop from flash drive to phone.