PHP Whois Script au Problem

Hi,

I obtained a whois script to check from domain availability from here: www.soaptray.com

The script works perfectly well, except for .au domains. They always give me the result as "Not Available"

I have tried changing the server settings but to no effect. Does anyone have any ideas on how to fix this?

<?PHP
	//----------------------------------------------------------------
	// 	PHP FORM
	//----------------------------------------------------------------	
 
		if (empty($user_domain)){
			$domain_error = "Domain Name Cannot Be empty";
		} else {
		
			if (eregi('^([a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?\.)*[a-zA-Z0-9]([a-zA-Z0-9\-]{0,61}[a-zA-Z0-9])?$',$user_domain) != 1){			
				$domain_error = 'Invalid domain (Letters, numbers and hyphens only): "'.$user_domain.'"';			
			} else {		
		
				//no errors, perform search
	
				//$domain = 'enterit';
				
				$whois = new whois;
				$result = $whois->available($user_domain);
			
			}
		
		}
?>
 
<?PHP
 
	//----------------------------------------------------------------
	// 	WHOIS LOOKUP CLASS
	//----------------------------------------------------------------	
	
	class whois {
	
		public $ext = array(
			'.com.au' => array('whois.ausregistry.com.au','No data Found'),
			'.net.au' => array('whois.ausregistry.com.au','No data Found'),
			'.com' => array('whois.crsnic.net','No match for'),
			'.net' => array('whois.crsnic.net','No match for'),	  
			'.org' => array('whois.publicinterestregistry.net','NOT FOUND'),	
			
			'.biz' => array('whois.biz','Not found'),
			'.info' => array('whois.afilias.net','NOT FOUND'),	
			'.mobi' => array('whois.dotmobiregistry.net', 'NOT FOUND'),
			'.tel' => array('whois.nic.tel','No match'),
			'.tv' => array('whois.nic.tv', 'No match for'),
			'.in' => array('whois.inregistry.net', 'NOT FOUND'),
			'.us' => array('whois.nic.us','Not Found'),
			'.name' => array('whois.nic.name','No match'),
			);
		
		public $error;
 
		function available($domain){
		
			$avail_domains = $taken_domains = "";
		
		
			$domain = trim($domain);
			
			//check for extention (probably want to remove this)
			preg_match('@^(http://www\.|http://|www\.)?([^/]+)@i', $domain, $preg_metch_result);
			$f_result = '';
			$domain = $preg_metch_result[2];
			$domain_name_array = explode('.', $domain);
			$domain_domain = strtolower(trim($domain_name_array[count($domain_name_array)-1]));
			
			$ext_in_list = false;			
			if (array_key_exists('.'.$domain_domain, $this->ext)){
				$ext_in_list = true;
			}
			
			if(strlen($domain) > 0){		
				//echo count($this->ext) . " item in array<br /><br />";
				
				foreach ($this->ext as $key => $value){
	
					$server = '';
					$server = $this->ext[$key][0];	
					
					echo $domain.$key;
					
					$lookup_result = gethostbyname($server);
					
					/*
					if ($lookup_result == $server){
						$error = 'Error: Invalid extension - '.$key.'. / server has outgoing connections blocked to '.$server.'.';
						//return false;
						
						echo "<span style='color:#FF0000'>$error</span><br />";
					}*/		
					
					$fs = fsockopen($server, 43,$errno,$errstr,10);		
					
					/*
					if (!$fs || ($errstr != "")){
						$error = 'Error: ('.$server.') '.$errstr.' ('.$errno.')';
						//return false;
						echo "<span style='color:#FF0000'>$error</span><br />";
					}*/
					
					fputs($fs, "$domain\r\n");
					while( !feof($fs) ) {
						$f_result .= fgets($fs,128);
					}
					
					fclose($fs);				
						
					if($domain_domain == 'org'){
						nl2br($f_result);
					}
					
					if(eregi($this->ext[$key][1], $f_result)){
						//return true;
						
						echo "<span style='color:#00FF00'>AVAILABLE</span><br />";
						
					} else {
						//return false;
						
						echo "<span style='color:#FF0000'>NOT AVAILABLE</span><br />";
					}
								
				}
			}
		}
	}
?>

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