I wonder whether you chaps can see why the Google results description for this website:
http://www.eastnorlandrovershow.com
Is showing as:

When the Meta Description says:
<meta name="Description" content="Eastnor Land Rover Show, it's time to welcome you and the best 4x4 by far to it's ancestral home, Eastnor Castle. Taking place over 25th-26th August 2012">
Thanks
Google does not usually use the meta tag for its description, it will usually take the some text from within the body tag.
Areas of code google is taking your text from:
The reason this is being used as google’s description is because your source only only contains footer links and the alt for your image maps main image.
Maintaining a description meta tag is important, just not for google.
If you want google to be able to read your content easily you need to put your headers in h tags, content in p tags and menus in lists.