Applying CSS to Externally Loaded Text

Hi.
I’m doing a flash site where I need to load text from external .txt file. I’ve used this tutorial and everything works fine as long as I don’t use scandic letters. I live in Finland and we have three letters (as in other scandinavian countries) what we use: ö, ä, and å. I’ve tried to include these letters to Character Embedding thing (including Lowercase and Uppercase) but after that the text area doesn’t show anything.
Does someone have any ideas how to get this work?

Thanks.