Alright, I just successfully installed Wamp 5 1.6.1 and all services are running as they should, but even the simplest test for MySQL fails immediately.
<html>
<body>
<?php
$connect = mysql_connect("localhost"

or die ("Yhdistäminen ei onnistunut" . mysql_error());
if(isset($connect))
{
print "MySQL asennettu";
}
mysql_close($connect);
?>
</body>
</html>
It shows this error:
Warning: mysql_connect() [function.mysql-connect]: Access denied for user 'ODBC'@'localhost' (using password: NO) in J:\web\mysql\sqtest.php on line 4
Yhdistäminen ei onnistunutAccess denied for user 'ODBC'@'localhost' (using password: NO)