Ok, I found out that this topic has been discussed earlier here already. There isn´t a specific solution for the theme but you could get the same functionality with the Widget Logic plugin, it works great even with the latest WP 3.01 version (though it hasn´t officially been tested yet).
I installed the plugin and now every widget gets a Widget Logic field, here you type in your IF statements. Here is an example, I want a specific widget only to show up on my homepage:
is_page(‘homepage-swedish’) || is_page(‘homepage-finnish’)
Just change it to your specific multilingual pages and that´s it!