Hi TurboG16, in short, it's possible, but you are always going to be running into the same problems with transfering files from your PC to your Amiga. It would seem you haven't yet solved this problem. As mentioned above, the .adf file can be transferred to a real Amiga disk, but this can't be done with only a PC. The file has to be written to an Amiga floppy disk, residing in an Amiga floppy drive (assuming you don't have a catweasle). If you need more help with this problem, let us know. My advise is to go back to the person you bought the computer from, and ask for some help.
-Oli