tobik999

Just had the same problem, I changed at mmenu-lite.php line 57 from
add_action( 'wp_head', array( $this, 'init_menu' ) );
to
add_action( 'wp_footer', array( $this, 'init_menu' ) );

I also had a problem with the search field, will post my solution in a new thread

I changed also all the db entries from example.com:8081 to example.com using the search and replace script, but it is still redirecting to the old port# :S

UI what a pain, I have to change all the guid manually. I really do not understand why WP needs the whole path as unique identfier.

backend works properly, but wth does the frontend stil redirect to the wrong port?

A multisite install implies to have pointed both domains to the same wordpress install. Two hosting accounts need two wordpress installations obviously.
You could create one and copy it over to the other hosting account, but further changes needs to be done on both backends. Pointing both installation to use one shared db is not possible with wordpress as I know. Hoewever regarding SEO it is it not advisable to have the same content on two different domains.