I'm manually importing some text files. In the Write Post page I edit the timestamp setting for example the date 2000-05-05. All look fine, in the sidebar appear May 2000, if i click there all excerps for that date appears but by clicking on the title to read the single post i recive the message that i'm looking for something not here. One post for example have the link http://www.mysite.com/?p=22 and checking directly the db there is the record with the post ID 22. Other posts i made without changing the timestamp work fine.