I've finally switched to the correct version 1.1.22 (also restarted after installing, in case that matters), but it still doesn't work for me:
I was unable to select pretty much anything without getting a script error.
Only "Genres" worked, but selecting a series resulted in an error. Oh and the "find by viki id" option worked too and I was able to play videos with it...but without subtitles of course :/
"Select Subtitle Language" also worked, but nothing was listed.
http://xbmclogs.com/show.php?id=285020
When I started it again later, "Select Subtitle Language" took a while and then actually displayed lots of languages O.O (that happened only once...when I tried again later it immediately showed nothing again)
Then I tried to start a series with the viki id option, but it had no subtitles.
The other options still result in a script error, except for genres which works to the point that i can actually play videos...without subtitles^^
http://xbmclogs.com/show.php?id=285022