0.1.7 is completely broken. The menu is added to admin, but the link returns 404. The menu link points to:
I edited the plugin to correct this. The page will pull up, but then doesn't do anything.
I like this plugin, as although I'm not multilingual, it allows me to create .pot files for my plugins so that others can easily localize them. I hope this is fixed soon.
The author might also consider not making a new Main Manu -- it's really not necessary. You might consider something like Manage -> Localization. Just a thought.