Yukarıda verdiğin gibi değiştirdim..

Şu hatayı aldım..
Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/rehbersi/public_html/_sitemap.php on line 6

<?
include "yol.php";
                                       
$xml_ciktisi="<?xml version=\"1.0\" encoding=\"windows-1254\"?><urlset xmlns=\"http://www.google.com/schemas/sitemap/0.84\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.google.com/schemas/sitemap/0.84 http://www.google.com/schemas/sitemap/0.84/sitemap.xsd\">\n";
$isimx=mysql_query("SELECT * FROM rehbersi_data WHERE onay='e' ORDER BY haber_id DESC");
while($link = mysql_fetch_array($isimx))
{
$haber_id = $veri["haber_id"];
  $date = date("F d, 20y");
$xml_ciktisi .= "<url>
                          <loc>http://www.rehbersite.net/index.php?mode=haberdetay&haber_id</loc>
						       //index.php?mode=index   // veya link boyle olucak...
                          <lastmod>$date</lastmod>
                              <changefreq>daily</changefreq>
                              <priority>0.5</priority>
                              </url>\n";
};
$xml_ciktisi .= "</urlset>\n";
echo $xml_ciktisi;
?>