The error you have with your main store is in your includes/configure.php file. You have the lines...
define('HTTPS_SERVER', 'https://web34.secure-secure.co.uk/localschooluniform.co.uk/');
define('DIR_WS_HTTPS_CATALOG', '/localschooluniform.co.uk/');
This means that you are doubling up on the /localschooluniform.co.uk/ part. Replace those defines with...
define('HTTPS_SERVER', 'https://web34.secure-secure.co.uk/localschooluniform.co.uk');
define('DIR_WS_HTTPS_CATALOG', '/')
The problem with your test site is that there is a space at the end of one of the defines. Hard to say exactly which one without seeing the configure.php file.

Regards,
Christian.