Hello, I\'m trying to set up the permalink structure so that it reads http://www.websitename.com/page-name/. I change the settings in Wordpress to \'Custom Structure\' and use /%category%/%postname%/  - When I navigate to the pages now I receive a 404 error. Any advice in resolving the matter would be greatly appreciated. Thank you.

In the Settings -> Permalinks make sure you don't get an error message.

If Wordpress reports that the .htaccess file is not writable, the webserver will use the old links structure and not the one you've changed in Permalinks.

Plz check that first.