Do you have a Mac or PC? Sorry, can't help you if you have a Mac.
If you have a PC do the following.
Connect your phone to your computer's USB port. A message should appear on your phone. Select "As Disk Drive". This will open a dialog box on your computer and your phone can be used like any other drive on your computer. Open the folder in for your phone and create a folder called music. Click and drag the music to your phone.