Including a https .aspx form/response in a PHP page - Tricky?

Hi All, I have a dilemma where I have to include a form found in a .aspx page into a php page - The form is an ADSL phone check (checks to see if ADSL is available based upon phone number). I need to send the form some basic variables and get the response into my PHP page The form - https://adsl-wholesale.datafast.net.au/EndUser/ADSLAvailability.aspx I have tried the bellow with no success (firstly I use a form in one of PHP pages gathering the same $_POST variable names as the .aspx form, then send it to the below action page)- I have also tried sending the variables as $_GET. I have a feeling I may have to use the CURL library here? Any suggestions are greatly appreciated. Cheers, Paul <?php // Post variables already collected, now do this action $url = "http://adsl-wholesale.datafast.net.au/EndUser/ADSLAvailability.aspx"; $file = fopen ($url, "r"); if (!$file) { echo "<p>Unable to open remote file.\n"; exit; } while (!feof ($file)) { $line = fgets ($file, 1024); // This only works if the title and its tags are on one line if (eregi ("<title>(.*)</title>", $line, $out)) { $title = $out[1]; break; } } fclose($file); ?>