As no reply has been forthcoming, I have attempted to once again follow the instructions provided with the theme.
Unzipping the theme and copying the media skin and app folder to magento server root overwrites the original files.
The result of this is that the admin backend fails to load as the correct files are no longer there !
Unless a backup is made a reinstallation of Magento is required.
Surly this is not correct , either the instructions are incorrect or there is an issue with theme installation.
I would be grateful for a reply