The correct code for wp2.01 is:
(wp-includes/classes.php)
after:
if ((empty($q[‘order’])) || ((strtoupper($q[‘order’]) != ‘ASC’) && (strtoupper($q[‘order’]) != ‘DESC’))) {
$q[‘order’]=’DESC’;
}
type: (change 23 to your category number)
if (’23’ == ($q[‘cat’])) {
$q[‘order’]=’ASC’;
}