In using CGI.pm, what do I need my "use" statement to refer to?

Hm.. all_parameters() doesn't seem to be part of the public API for CGI.pm. To use it, you need to create an instance of CGI, and invoke all_parameters() as a method call.

  use CGI;
  ...
  my $cgi = new CGI();
  ...
  my @paramsInOrder = $cgi->all_parameters();
[download]

should do what you need.