Change the Link that the widget referes

Hello,

I have recently installed Multilingual press which give you the ability to have multi-language websites. The change from one language to the other is made by a widget. This default widget has a pre-configured link that takes you to the blog webpage. I dont want this I want when my users click on it to go to my websites first page. What file do I have to edit so to add the new link ? I am including a print screen to help. I want to edit the line that is highlighted in the image but i cant find the file that it is included.

Image Link

Thanks In advance.