multilingual menu : I cant achieve the proper efect

Problem:
The menu, which is I have built in 4 languages, doesn't appear in the position of main menu when i change en/pl/es in address. Instead of it I have only main menu.
Description: I have installed gk_university_quickstart_J!3.zip on my server. Than i followed every possible tutorial saying how to create multiligual joomla web site. However there is some problem. When I set manualy:
extension>template manager>gk_university - Default>menu>Choose menu>main menu (en-GB)
the menu becomes English. But then i klik the language switch to Polish (or change to Polish in the address) and menu disappears.
When I set:
extension>template manager>gk_university - Default>menu>Choose menu>main menu (en-GB)
than I can't switch menu at all. what is the solution ?
Please help. Regards. Leo.
web is : http://test.comfeng.pl (gk super users enabled)

Hi

There is no menu module position in our templates. Instead You can make multilanguage menu on one menu by just attaching the proper language to menu item or create multiple template styles and attach a different language to each of them with a different menu selected. Or use Falang and simply translate menu.

https://www.gavick.com/documentation/un ... oomla-1-7/