anyway, i found out that website was working on the first try, but problem with menu was caused by friendly-urls. To disable it i need to enter to admin panel, but it is not possible for me, at first i thought somehow it may be cased by web browser, but i've checked every browser which i have installed (Opera, Safari, Chrome, Firefox, IE) and in everyone is same effect.
After login i can see something like that on my screen:
there was much more of that but pasting it fully in here is pointless, any idea what could cause that?
is there any way to disable friendly-urls without admin panel ? maybe via phpmyadmin (if it is possible which table / value)?