I have not tested this but AFAIK when you want to access parameter off the URL you should use the url_param() method

This applies to your otherscript.cgi where you would initialize a new CGI-object and then access the parameter like this

use CGI;
my $q = new CGI;
my $ord_id = $q->url_param('ord_id');
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Using use CGI qw/: standard/; instead of use CGI; gives you a "magic/invisible" object which you in fact can access as $CGI::Q making the code snippet above look something like

use CGI qw/: standard/; 
my $ord_id = url_param('ord_id');
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So choose one, not both!