Please look at the following thread which was recently posted as it addresses your question. There are different answers and creative suggestions (renaming titles).
Also, I am going to go out on a limb and restate my earlier response as there is a difference of opinion (either that or I have a haunted copy of Nero. I’m uisng Nero Ultra 7 188.8.131.52 and I am burning with Nero Express 7).
I just placed placed three tracks in a folder and I named the tracks #1.mp3, #2.mp3 and #3.mp3. I also went to properties of each track and made sure the titles were changed there as well.
I added the three tracks to my project and then I clicked/dragged so the order was changed to #2.mp3, #3.mp3 and #1.mp3. Then, I burned the CD.
[B]When I played the CD, the automatic order of play was #2, #3 and #1.[/B]
I have been doing this with previous versions of Nero as well for all my Audio CD’s. I simply add all the files I want and then drag to the order of play I want.