If TouchCopy is not detecting your iPod when you attempt to connect it to TouchCopy, please see this support article for suggestions on how to resolve the problem...
For older iPods with click wheels....
TouchCopy does not detect my iPod. (wideanglesoftware.com)
For newer iPods (iPod Nano) and iPod Touch devices running iOS....
TouchCopy does not detect my iPhone, iPod or iPad (wideanglesoftware.com)