mciprepaid

does anyone know how to make a bootable thumb drive? i need it to go into dos-mode. i went to bootdisk.com and downloaded the 98se boot file. it writes the boot files to the floppy drive. so i tried copying all the files from the floppy to the thumb drive. i tried to boot from the thumb drive but it didnt work. i googled it up to see if anyone knew how but no answers. so maybe some of you people know how.. thanks!