As I mention in the title, I finally learned how to turn my NSFs into MP3 files. Now, how do I chop up the MP3 into individual tracks. As it is, my converted MP3s have no individual tracks. Any help would be appreciated and the fruits of my labor would be duly posted. Thanks in advace!

There are several programs out there, some free, like Audacity, and some paid, like Goldwave and Adobe Audition.