We have a site Swapshop.co.nz thats been around for 2-3 years. We have around 2000+ pages all with different tags, title and content. Started to use google site maps and site:www.swapshop.co.nz has gone from 38,400 to 548. Our site map is in xml and we use a mod rewrite to product a better url that details.php?site=888 to 888.htm via .htaccess. Our site gets crawled by most SEs every day and some do 800+ pages. Our issue is this google site maps present all our advert details pages but none of these for 2-3 months are being indexed at all yet our catergory pages index?catid=888 are happily indexed. Checked the crawl stats, http errors etc but cant see any issue. The index.php catergory page as well as the advert details.php page remove the session IDs but only idex?catid= seems to work. Why are the pages submitted to google not showing and the pages not submitted via the google site map show? We generate a txt, xml rewritten map every hr and a non rewritten txt, xml but only submit the rewritten xml Any advice would be great the site is http://www.swapshop.co.nz Site map is verfiled and working. DC: 66.249.93.104Pages indexed: 551 DC: 64.233.179.104Pages indexed: 552 DC: 216.239.51.104Pages indexed: 552 DC: 64.233.161.99Pages indexed: 522 DC: 64.233.167.99Pages indexed: 551 DC: 64.233.171.99Pages indexed: 552 DC: 64.233.179.99Pages indexed: 552 DC: 64.233.183.99Pages indexed: 8,410 As above why so different?