For your first question: The "virtual" drives are very handy for those situations, actually also handy for your 2nd question.  but let me ask you first, have you managed to boot to the SIO2SD configuration menu (I don't remember the exact name)  in which you can go thru the SD card content in the Atari Screen? If yes, then you can do Ctrl-T twice to get to the virtual drives, you set there the second side of the disk image (using the number keys of your A8). Another Ctrl-T will put you