Currently Being ModeratedNov 28, 2012 2:48 PM (in response to rgraneyyy)
You cannot move the notes, sorry. GarageBand assigns them automatically to the staves. Either use separate tracks, or use only one clef. If you click on the clef, you can join the two staves as one single bass stave.
If you want a better score for printing, you might consider to buy notation software.
GarageBand is not designed for this kind of output.