List only one category on the frontpage?

Hi

I'm struggling to understand how to choose which category to show on my startpage.

I want only the post for the news category to show on the startpage.

I've tried creating a maintemplate and change to this
and then using a page called "start" as a static page and having the home virtual template choosen under virtual templates".

I've also created the postformat-nyheter sub-template but I'm not sure what else I'm supposed to do.

Thanks