Drupal path linking to wrong content
@citricguy exactly - seems that any URL you type after /news/ ends up showing your newsletter.

You probably have an index.html file there with that content.

Example:

http://www.signamic.co.uk/news/something-that-should-not-exist

Gives the same output as:

http://www.signamic.co.uk/news/full-time-pacourse-adminstrator-vacancy

Check your folder structure in root and .htaccess file.