I just upgraded to 2.6.1 from 1.5. My database is located in a subdirectory under my website called /b2. I'm getting 404 error messages when I try to manage my site, like "The requested URL /wordpress/wp-admin/post.php was not found on this server." I don't have a "/wordpress" directory on my site; all my wordpress files are located in /b2. (Should I have a "wordpress" directory?) Or, when I try to activate the Atahualpa theme, I get "The requested URL /wordpress/wp-admin/js/' + url + ' was not found on this server." which doesn't make much sense to me, since ' + url + ' doesn't look like a valid file name.
Any help you can give on this would be greatly appreciated. Thanks!