Besides of that, there is another problem: when I try to create new theme, a message appears asking: do you want to leave the page or not? and saying ...

And that's in English  en.wmv

And here you are Ukrainian localization  wpForoUK.zip

@robert Hi, Robert! Thank you for your answer. Posted by: @robert I recommend read wpForo documentation, because I see most of important features and...

Oh, I've discovered that only 1 file is possible to attach! It'll be a good idea to allow to attach more files! And it'll be convenient to make a prev...