The hacks have been combined with the installation package of the latest M17n now you can install all hacks in a flash! See downloads!
The new joomla 1.6 possibilities on mulitlingalisation of your website are just not enough to have your website a true multilingial one. G17l is busy creating some tool to get the same functionality in 1.6 as you have with the Multilang M17n extension in Joomla 1.5. We are testing!