Maga main Menu

1. Maga main Menu , i cant make work , it not open or close is try this:

Please go to Appearance=>Menus=>Manage Locations to select menu for primary, categories & mobile menus. Go to Mega Main Menu then check on both checkboxes for primary & categories menu. Click on “Layout Options: categories” to select menu direction is Vertical. We have an option in Theme Options=>Header to show/hide categories menu on home page & inner pages.

BUT MAGA MAIN MENU ITS NOT WORKING.!!!!!!

2 . How to make Categorys display normal and just like products not like on the picture i add hier down.?
http://tool24.net/diamantwerkzeuge/Bild.png

3. How i can change all menus like shoping cart and primarymenu in German ?

4. Whe i make CSS changes and the i Enable Less Compiler On , all changes disapare how i can fix that ?

Thanks