I'm trying to install the google sitemap generator but everytime I try to CHMOD the sitemap.xml and sitemap.xml.gz files to "666" I get the following message:
There was a problem writing your sitemap file. Make sure the file exists and is writable
I have upload both files within the WordPress directory (where the wp-config.php is) and I have also tried setting the files to "777" again the same message appears, please can anyone help?