Ehm, you can't make banana bread in a bread maker... That's a loaf bread. Try googling "bread machine recipes", and look on book sites, too (amazon.com and Barnes & Noble should have some books just for that). We have a book that probably came with our machine, but I can't find it to give you the title!
Oh, and be prepared for waiting, too.
We rarely use our's anymore, but I remember it taking about half the day for us to have it with dinner...