I have in my google webmaster tools: "Googlebot has successfully accessed your home page. Pages from your site are included in Google's index." and "Sitemap stats Total URLs: 2,202 Indexed URLs: 1,140" But I can not see any page in google. I use "site:" operator or just type the site address. What is that
I havent come across this so far, but I have seen google not indexing all the urls submitted in the sitemap. Try using "+site:yoursite.com" to see if pages from your site are coming up in google.
Another way could be to type "site:yoursite.com yoursite.com" - and see if Google shows up any results searching your sitename within your site / domain. Haven't come across this before though - what is the site name and did you check on Google.com or was it on local country specific Google Server?
site:sitename.com sitename.com did not match any documents. The other strange thing that I have in webmaster tools is "Top search queries" with keywords and positions that were updated Aug 2, 2009. It means that the site has some google rankings !!