did someone port narchives to wp 2.?

i am a creature of habit and i love narchives for its searchable archives. maybe there now is a plugin doing this, i have not found it yet …

however under wp 2.0 it now creates an error:

WordPress database error: [Unknown column ‘user_level’ in ‘where clause’]
SELECT * FROM pbusers WHERE user_level > 0

obviously because the user_level has dissappered from the db structure.
can someone help me fix this?
i believe the lines concerned are these:

function show_author_select() {
global $wpdb, $tableusers, $author;
$users = $wpdb->get_results(“SELECT * FROM $tableusers WHERE user_level > 0”, ARRAY_A);
$output .= ‘<option value=””>All Authors</option>’.NL;
foreach ($users as $user) {
$output .= ‘<option value=”‘.$user[‘ID’].'”‘;
if ($user[‘ID’] == $author) {
$output .= ‘selected=”selected”‘;
}
$output .= ‘>’.$user[‘user_nickname’].'</option>’.NL;
}
$output = ‘<select name=”author”>’.NL.$output.'</select>’.NL;
echo $output;
}