Subdomain for testing setting issue

[psvialli]

I have a site all up and running but needed a test Zencart where I can play with so mistakes will not matter as i am new so there will be a lot ! , so I installed it under a subdomain (domain not active just a dummy so i will be using my IP) it all installs and i can access it fine but i get no Images ? The admin has images ?

Spoke to my Provider who said i need to change some setting in my Configuration , but he could not tell me what !

Settings

I can access my site using my IP example below

http://00.00.00.00/~mydomain/demosite.co.uk/

Configuration.php... where am i going wrong ?

// Define the webserver and path parameters
  // HTTP_SERVER is your Main webserver: eg-http://www.your_domain.com
  // HTTPS_SERVER is your Secure webserver: eg-https://www.your_domain.com
  define('HTTP_SERVER', 'http://00.00.00.00');
  define('HTTPS_SERVER', 'https://00.00.00.00');

  // Use secure webserver for checkout procedure?
  define('ENABLE_SSL', 'false');

// NOTE: be sure to leave the trailing '/' at the end of these lines if you make changes!
// * DIR_WS_* = Webserver directories (virtual/URL)
  // these paths are relative to top of your webspace ... (ie: under the public_html or httpdocs folder)
  define('DIR_WS_CATALOG', '/~mydomain/demosite.co.uk/');
  define('DIR_WS_HTTPS_CATALOG', '/~mydomain/demosite.co.uk/');

Hope this makes sense