The guestlist page itself has no special code in it except for a list with no entries. Each guest entry produces a new entry in that list. There are many variations on this theme available. You can have the submissions be appended to a contiuously growing page for example. The following is an example of a simple map.
Maps use CGI programs to redirect the browser to new URLs.
Click Worcester or Grafton to see what it does. Click here to go to a description of the use of maps.