In WinUAE control menu, section diskdrives (or floppy drives, don't remember) you can put UP TO EIGHT IMAGES! At right of each little window there a button with (...), press that button and u can choose wath disk u want to put there. Put the 1st image disk on df0: (1st IS install, 2nd is Workbench, 3rd is Locale, 4 is Extras, 5 & 6 I don't remeber quite now).