Here's a few things you can check:

• The method attribute of the form element is set to 'post'
• The action attribute of the form element is set to the correct URI
• If you use the enctype attribute of the form element, it should be set to 'application/x-www-form-urlencoded'
• Use the $q->param method without arguments to get a list of all parameter names returned to your CGI script

Regards,