How to change logos for different users?

[gjh42]

Another good location to edit would be /includes/languages/english/your_template/header.php. Wrap a test around this and make alternates as desired:

// added defines for header alt and text
  define('HEADER_ALT_TEXT', 'Powered by Zen Cart :: The Art of E-Commerce');
  define('HEADER_SALES_TEXT', 'TagLine Here');
  define('HEADER_LOGO_WIDTH', '192px');
  define('HEADER_LOGO_HEIGHT', '64px');
  define('HEADER_LOGO_IMAGE', 'logo.gif');