BryceJr

Some people will sign up and go through placing order(s) to find out the shipping charge.

If you're concern about payment, your payment processor(paypal, authorize.net, etc) should send you an email regarding completed and successful payment. Without it, you don't dispatch inventory.

If you're still in doubt, log in to your account(paypal, 2checkout, etc) and verify.

It seems you haven't configured SMTP on your IIS 7.5 which came with Win7.

See >>here

I agree with Sam, aka Spooks, install XAMPP or Linux.

Better yet, install it on a subfolder in your remote web host.

Makes sure ...

Folder permissions are 755
File permissions 644

Use your host web control panel to change permissions not FTP.

After the 2 configure.php files have been updated set their permissions to 444 or 400.

The errors in your first post are indicative of the install process not being able to write to the 2 configure.php files; permissions are too restrictive.

Folders 755
Files 644 (except for the two configure.php files in /includes folder and /admin/includes/ folder which becomes 444 or 400 AFTER installation.

If you already installed it in the catalog folder, move/copy the contents of the catalog folder to the root(public_html) of your web server.

Make these changes.
/includes configure.php file.

define('HTTP_SERVER', 'http://www.domain.com');
  define('HTTPS_SERVER', '');
  define('ENABLE_SSL', false);
  define('HTTP_COOKIE_DOMAIN', '/');
  define('HTTPS_COOKIE_DOMAIN', '/');
  define('HTTP_COOKIE_PATH', '/');
  define('HTTPS_COOKIE_PATH', '/');
  define('DIR_WS_HTTP_CATALOG', '/');
  define('DIR_WS_HTTPS_CATALOG', '/');

define('DIR_FS_CATALOG', $_SERVER['DOCUMENT_ROOT'] . DIR_WS_HTTP_CATALOG);

/admin/includes configure.php file.

  define('HTTP_SERVER', 'http://www.domain.com');
  define('HTTP_CATALOG_SERVER', 'http://www.domain.com');
  define('HTTPS_CATALOG_SERVER', '');
  define('ENABLE_SSL_CATALOG', 'false');

define('DIR_FS_DOCUMENT_ROOT', $_SERVER['DOCUMENT_ROOT'] );
   define('DIR_WS_ADMIN', '/admin/');
   define('DIR_WS_CATALOG', '/');

In addition to permissions ...

configure.php file public_html/includes folder

define('DIR_FS_CATALOG', $_SERVER['DOCUMENT_ROOT'] . DIR_WS_HTTP_CATALOG);

configure.php file public_html/myadmindir/includes folder

  define('DIR_FS_DOCUMENT_ROOT', $_SERVER['DOCUMENT_ROOT'] );
 
  define('DIR_WS_ADMIN', '/myadmindir/');

  define('DIR_FS_ADMIN', DIR_FS_DOCUMENT_ROOT . DIR_WS_ADMIN);

  define('DIR_FS_CATALOG', DIR_FS_DOCUMENT_ROOT . DIR_WS_CATALOG);