In the Reporting tab of my Profile Settings, what is the "Default Page" field?
The Default Page should be set to whatever the default (or index) page is in this site's directories - the file that is loaded when users enter only the domain name with no file extension (www.example.com). The most common is 'index.html'; other common ones include 'index.php', 'Default.htm,' or 'default.asp'.
Urchin uses this information to reconcile URLs such as http://www.example.com/ and http://www.example.com/index.html, treating them as the same page. If the Default Page is not entered correctly, these would be reported as two different pages. Only one default page can be specified per profile.