dangermole

Hi everyone, I have recently unearthed my Sold Out edition copy of UFO Enemy Unknown. My previous attempts to run the programme or install met with utter failure - ie small dos windows opening and closing within the blink of an eye so I have no idea what they were telling me. Anyway I would love to have a crack at this after many years absence, so please can anyone tell me (in simple terms ) how to install the Sold Out version of this amazing game, or alternatively point me in the direction of the answer? I am running Windows XP.