Sorry I did not explain so that you can understand. Open Windows Explorer, put your floppy in the drive then go to My computer and negociate to the floppy drive.and click on it. The right hand panel is where you would normally see the contents of the floppy in the drive, but I assume that because you are wanting to put your address book on it it will be empty. So on the right hand side of the window there will be nothing showing.Right click anywhere on there and select "Paste" (assuming you have already selected copy from your address book) the whole contents of your address book will be copied to your floppy. If you the click on any name in there it will open the box with all the details in it. Ihope you can understand now. Good luck.
Reboot and try again, It should work no problem don't load any prorams until you have done it. After you have booted Just go straght Start/All Programs/Accessories/Address Book and follow my earlier instructions.