please please please tell us if we need to sign up with another developer before we go to the download and get page.
To get Constructor Classic 1997, first you need to create a free GOG account and optionally download GOG’s gaming client (the download for GOG’s gaming client is given to you above). Head over to GOG’s website and register a free GOG account if you don’t have one.
As noted clearly on the product page: “You need a free GOG account to get this game. GOG may not be available in all countries.”
please please please read before whining about how you wasted 10 seconds of your life.