I went back looking at the Net::SSLeay docs and I changed the "Authorize.Net Interaction" section to make it more like the example shown (3b) and now the server is spitting things back. Once I get things more organized I will write it up and post it, so further suggestions are welcome. Also if somebody sees the problem and can explain what is wrong with the way the original code uses the hash I'd appreciate the insight.

#################################
### Authorize.Net Interaction ###
#################################

($reply_data, $reply_type, %reply_headers) = post_https($host, $port, 
+$script, '',
    make_form                                                         
                (                                                     
+             
                    'x_Login'           => $login
                   ,'x_Version'         => $authnet_ver
                   ,'x_ADC_Delim_Data'  => $adc_delim_data
                   ,'x_ADC_URL'         => $adc_url
                   ,'x_Test_Request'    => $test_mode
                   ,'x_Type'            => $auth_type
                    ,'x_Method'          => $payment_method
                   ,'x_First_Name'      => $first_name
                   ,'x_Last_Name'       => $last_name
                   ,'x_Amount'          => $charge_amount
                   ,'x_Card_Num'        => $card_num
                   ,'x_Exp_Date'        => $expiration_date
            )
);
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-THRAK
www.polarlava.com