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You will be able to make the most out of our web site if you have versions 5.0 and above of either Microsoft Internet Explorer or Netscape Navigator browsers installed on your computer.

If you are not sure as to which version you have, please go the 'Help' menu at the top of your screen and select 'About Internet Explorer' or 'About Netscape'.

If your browser version is older than the ones recommended above (the version number is smaller than 5), you may experience problems viewing some pages of the site.

If this is the case, you may want to upgrade your browser to the latest version. You will be able to download the latest browsers for free from the web by clicking on the links below.

Internet Explorer or Netscape

If you do have the latest browser version installed but you are experiencing technical difficulties with our site, please let us know. If there is a problem with the site, we will do everything we can to fix it as soon as possible.

To download documents from our web site, you need to have Adobe Acrobat installed on your computer. Adobe Acrobat is free software that lets you view and print PortableDocument Format (PDF) files. Please click on the link below to download your free copy.

Download Adobe Acrobat

The World Wide Web (WWW) represents a new and easy way to find information. Information is organised and presented using links (underlined text and buttons) which means that you can locate what you want to know quickly without having to read through long pages of text that is not relevant to you. Invista has put together a few tips below to help you with getting around web sites in general.


Links are indicated by underlined text. If you click on a link, it will take you directly to another web page or another location on the same web page.

Going Back to a Previous Page

To go back to a previous page you visited, you can click on the button with an arrow pointing left at the top of your screen. You will also find buttons labelled 'back' on most pages of this site - these will take you back to the previous page you visited.

Visiting sites several times

If you wish to visit this site again in the future, you can save it as a bookmark or favourite. This means that you will not need to type the address in each time.
To bookmark a site:

  • go to the site,
  • click on 'Bookmarks' or 'Favourites' at the top of your browser screen,
  • select 'Add to favourites' or 'Add bookmark'

To access a site on your next visit, click on 'Bookmark' or 'Favourites' at the top of your screen and click on the site name from the list.

For more information about how to use the web, you may want to visit the Web Wise site by the BBC at

We will treat all information given by you in confidence and in accordance with the Data Protection Act 1998. We will not disclose any information about you to any third parties except where it is necessary to do what you asked us or you have specifically told us that we could.

For further information please read our Privacy Policy.