I haven't done what you are trying to do for quite awhile but as I recall it can be done.
Not sure if Mac 10.4.11 will have the correct software.
Here is the sequence as I remember.
1. create a song in Biab
2. drag the song to Garageband where you can edit.
3. send from GB to iTunes
4. burn a CD from iTunes
Again it has been sometime since I actually have done this but this should get you on your way.
I have done at a half dozen CD's with great results although the process is time consuming.