That's what Finns here in Hive are for. Translation aid! :)

Kotisivu and Suomi are just the right words. Festivaalisti could be Festivaalista which means about the festival. So only one letter off. Couldn't find anything else written in Finnish. Instead of kotisivu some may use the word etusivu. (etu = front) It's a matter of opinion which to use.

I assume translating with Google from Estonian to Finnish would give more accurate results than translating from English to Finnish so I think that will carry you pretty far. Especially if you translate sentences, not only individual words.