I would recommend spending a little time listening to some styles. The StylePicker has some very good tools for helping you find a style. On the left side of the window is the Category section. Narrow down choices by picking one of these, such as Raggae. There is a Search button where you can enter the name of a song and it will find a style match if possible. Then there is a 'Show Styles by Feel and Tempo' dropdown box. Once you find a style you like, you use this to find other matching styles. With so many styles, I'm sure you can find what you want.

If you're importing a Midi track, BIAB won't do what you want unless you enter the chords, tempo, and style. Once these are set, you can import the track(s) into either the Melody or Soloist. Any other part will be erased once you press play. There are plenty of sites with BIAB arrangements already done. Try searching the web for 'BIAB songs'. Yahoo has a really big selection.

R