My site is Czech. I also have a name under "teachers" that has an unusual letter (polish in that case) that actually should go wrong i think when the bible books are wrong, but it is ok. The same with "type of sermon" and "topic". They´re OK. They were inputed through the component.
The czech names of the Bible books had been simply translated in the czech language file (cs-CZ.com_biblestudy.ini in administrator/language). The file is saved as utf-8 but as I said, the "topic" dropdown (translated in the same way) shows the characters correctly but just the Bible books do not...
I suspect that it must be the question of the encoding of some other component file (the one that has to do with this specific dropdown select), just have no idea which.
Another idea that comes to my mind is that there are names of the Bible books in the backend of the component which I did not translate in full (just Genesis). But the same is true of the only topic I´ve changed in the backend: Sin = Hřích, which renders correctly... (to be honest, I was a little confused that the names of the topics and Bible books in the backend component did not translate once I translated them in the language file)
As for your page - I was not able to open it. It did not load.
Anyhow, THANK you for trying to help me!
Martin