well in fruity loops, go to c:\program files, then fruity loops, then data, then patches, then there should be a subdirectory called soundfonts. if u know anything about fruityloops, then u should already know how to get there. when u download ur .sf2, just unzip it into ur soundfont directory. then put it in ur step sequencer jus as if u were puttin a kick or a snare.