I'm confused- what do you mean by "track"? Are you saying that you want to be able to break music up into seperate instrument tracks (guitar, bass, drums, vocals)? If so, the answer is that you can't with the Sony Dat recorder- I'm not even sure that the Dat records in stereo (which would be two tracks at best).
If by "tracks", you mean splitting a long performance into seperate songs, that shouldn't be too hard. I don't know Cubase (I'm a Cakewalk guy), but in general it shoud go like this:
Dump your long performance as a single continuous track, find the start time of the song you want, make that the "from" time, find the stop time of the song, make that the "to" time. Select everything between "from" and "to", the export that as a wave file, name it and save it. Do that with each song, then use your CD burning software to make an audio CD of all the tracks.