Manual upgrade to 3.3 failed miserably – any suggestions?

Having asked my web host why I cant upgrade my wordpress sites automatically and their answer being ‘possibly due to its reliance on prohibited loopback connections’ I attempted a manual upgrade for the first time. Ive followed all the instructions – but still no success and get variations of the same error messages:

Network */ define(‘WP_ALLOW_MULTISITE’, false); /* That’s all, stop editing! Happy blogging. */ /** Absolute path to the WordPress directory. */ if ( !defined(‘ABSPATH’) ) define(‘ABSPATH’, dirname(__FILE__) . ‘/’); /** Sets up WordPress vars and included files. */ require_once(ABSPATH . ‘wp-settings.php’); /* Use phpinfo() to find path to upload_tmp_dir * and use this as the temporary directory */ define(‘WP_TEMP_DIR’, ‘C:\Windows\Temp’ ) ; Fatal error: Call to undefined function wp() in D:\Sites\gael-uladh.com\public_html\wp-blog-header.php on line 14

Are any of these common – is there anything I can do? I’ve tried deleting and re uploading