Please, please let us or me know of every problem you find in LeGo (2.2.1 is the newest version). As far as we know we've fixed every reproducable error, especially those concerning saving/loading a game (or starting a new one). Even if you can't speak English, I'm happy to try to understand Google Translate (That's what I'm doing when I'm posting here anyway) or even translate a polish bug report myself, all for the sake of LeGo :p I will come to this forum occasionally, but a private Message at WoG would be appreciated.
The QuickSlots and the Shields have indeed lost support, because we decided that any effort put into it wasn't worth it and could better be put into other applications - many of which are yet to be released. However, I'm happy to answer any question regarding either of those.
And regarding the polish wiki... You haven't done much, have you? As far as I can see, you've only translated the FrameFunctions? If you've got any problem (except the lack of time, of course), I'm happy to help where I can.