As part of the update to the website it was updated to be a secure site. This ensures that the data is encrypted between the server and your browser. The browsers show this by for example, displaying a padlock alongside the web site address. However, this has caused a fault in the site search. Our supplier is working on a fix.
In the meantime you can search the website using Google Search's Advanced Search. To make it easier we've setup some links. Click it and after Google Search has been displayed replace CHANGE-THIS with whatever you are looking for.
Search all PDF files - Replace CHANGE-THIS with whatever you are looking for
Search entire web site - Replace CHANGE-THIS with whatever you are looking for