That's definitely not the MODX .htaccess file. You wouldn't see Friendly URLs with that file either. You said friendly URLs are enabled, but are you actually getting them? If the URLs look like index.php?id=(some number), you're not getting friendly URLS.
With that .htaccess, you should need a password to access anything.
That suggests that either your MODX install is not in public_html, or your host is set up to redirect yourdomain.com to some other directory (or both).
