kendra, your screen incorporates a digitizer, there are circuits in there that "sense" your touch. Those are '''not visible''' with the naked eye. If your touch screen (digitizer) does not work, it is most often caused by a broken circuit within the digitizer. So, even if your glass is not cracked, it is still most likely that the digitizer has failed. Replace the front assembly to resolve this problem. Use [http://www.ifixit.com/Device/iPod_Touch_1st_Generation#guideList|these guides] to work on your iPod.