If you had bothered to surf that link you would have come across several FAQ (frequently asked questions) pages which provide much more info than I ever could. Essentially, you can download the games and transfer them to cassette tape for your original Spectrum or (by far the easiest) get a Spectrum emulator for your PC and play the games on that see http://www.aldridge98.fsnet.co.uk/howtoemulate.htm l
for more emulation details.