Convert code to WP 2.6

Hello all,

I want to use the Google News Sitemap Plugin but is not working in 2.6, because i need to change a line of code.

function get_category_keywords($newsID)
{
global $wpdb;
$categories = $wpdb->get_results(“SELECT category_id FROM $wpdb->post2cat WHERE post_id=$newsID”);
$i = 0;
$categoryKeywords = “”;
foreach ($categories as $category)
{
if ($i>0){$categoryKeywords.= “, “;} //Comma seperator
$categoryKeywords.= get_catname($category->category_id); //ammed string
$i++;
}
return $categoryKeywords; //Return post category names as keywords
}

function write_google_news_sitemap()
{

global $wpdb;
// Fetch options from database
$permalink_structure = $wpdb->get_var(“SELECT option_value FROM $wpdb->options
WHERE option_name=’permalink_structure'”);
$siteurl = $wpdb->get_var(“SELECT option_value FROM $wpdb->options
WHERE option_name=’siteurl'”);

// Output XML header

// Begin urlset
$xmlOutput = “<urlset xmlns=\”http://www.sitemaps.org/schemas/sitemap/0.9\”
xmlns:news=\”http://www.google.com/schemas/sitemap-news/0.9\”>\n”;

// Select all posts
//$rows = $wpdb->get_results(“SELECT ID, post_date_gmt
// FROM $wpdb->posts WHERE post_status=’publish'”);

//Limit to last 3 days, 1000 items
$rows = $wpdb->get_results(“SELECT ID, post_date_gmt
FROM $wpdb->posts
WHERE post_status=’publish’ AND (DATEDIFF(CURDATE(), post_date_gmt)<=3)
ORDER BY post_date_gmt DESC
LIMIT 0, 1000″);

// Output sitemap data
foreach($rows as $row){
$xmlOutput.= “\t<url>\n”;
$xmlOutput.= “\t\t<loc>”;
$xmlOutput.= get_permalink($row->ID);
$xmlOutput.= “</loc>\n”;
$xmlOutput.= “\t\t<news:news>\n”;
$xmlOutput.= “\t\t<news:publication_date>”;
$thedate = substr($row->post_date_gmt, 0, 10);
$thetime = substr($row->post_date_gmt, 11, 20);
$xmlOutput.= $thedate . ‘T’ . $thetime . ‘Z’;
$xmlOutput.= “</news:publication_date>\n”;
$xmlOutput.= “\t\t<news:keywords>”;

//Use the categories for keywords
$xmlOutput.= get_category_keywords($row->ID);

$xmlOutput.= “</news:keywords>\n”;
$xmlOutput.= “\t\t</news:news>\n”;
$xmlOutput.= “\t</url>\n”;
}

// End urlset
$xmlOutput.= “</urlset>\n”;
$xmlOutput.= “<!– Last build time: “.date(“F j, Y, g:i a”).”–>”;

$xmlFile = “../google-news-sitemap.xml”;
$fp = fopen($xmlFile, “w+”); // open the cache file “news-sitemap.xml” for writing
fwrite($fp, $xmlOutput); // save the contents of output buffer to the file
fclose($fp); // close the file
}

add_action(‘publish_post’, ‘write_google_news_sitemap’);
add_action(‘save_post’, ‘write_google_news_sitemap’);
add_action(‘delete_post’, ‘write_google_news_sitemap’);
?>

Any idea? Thanks!