Filter category on home page in WPFolio

I’m trying to filter out a category of post from my home page ( (id 6, my podcasts). I found some code that is supposed to work, but I have it in the wrong place because it has prevented the previous/next links from working properly (they keep loading the same initial page of posts). When I remove this code things work properly but that category of posts I don’t want displayed (of course) have returned. I am not dumb but am no coder (when say ut this in the loop, I don’t know what that means, for instance) Any help is greatly appreciated. Here’s the code I found, I put it in my child index.php

<?php
		if ( is_home() ) {
		query_posts( 'cat=-6' );
		}
		?>

Thanks.