If you can't submit results from newer clients than 1.7.3.0 and 1.7.3.2, change the following line in upload_results.php from:
$version_allowed = array('1.7.3.0', '1.7.3.2');
to:
$version_allowed = array('1.7.3.0', '1.7.3.2', '1.7.4.3');