Thanks very much for your reply.
I have finally got it working as I want it. See below.
//CODE IN madfish.php
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<?php
mysql_connect ('localhost', 'informotion', 'password');
mysql_select_db ('informotion');
$query = "SELECT * FROM syndicateDetails WHERE clientName='Madfish'"; // CHANGE THE CLIENTNAME TO THE SAME AS IN THE DATABASE FOR EACH PARTICULAR CLIENT
$result = mysql_query($query);
$row = mysql_fetch_array($result);
$dailyHoroKeyword = $row[HoroKeyword];
$dailyHoroshortcode = $row[Horoshortcode];
$txtDatshortcode = $row[txtDatshortcode];
$txtDatKeywordname = $row[txtDatKeywordname];
$clientURL = $row[clientURL];
$clientName = $row[clientName];
?>
</head>
<body bgcolor="#FFFFFF" text="#000000">
<? include("db.include"); ?>
</body>
//CODE IN db.include
<table border="0">
<tr>
<td><?php print $Horoshortcode; ?>
<br>
<?php echo $HoroKeyword; ?>
<br>
<?php echo $txtDatshortcode; ?>
<br>
<?php echo $txtDatKeywordname; ?>
<br>
<?php echo $clientURL; ?>
<br>
<?php echo $clientName; ?></td>
</tr>
</table>