Download them from
www.realfight.com goto the swap area. The files are only 170 to 280K. you can easily fit 4-6 on a floppy and transfer them to you computer with the sim on it. Some of my favs for 3d are Ultamate 3D, CAP232 TOC, and my all time fav is Quique Somenzini's Extra 300L - it does everything you throw at it and you can also get Quique's color scheme for it also.