Remove Category Posts From Front Page

Hi There,

I’m trying to prevent one category’s posts from showing up in the front page. I just want the post to show up on the dedicated page that I’ve created for it.

Per instructions from http://codex.ww.wp.xz.cn/The_Loop I’ve tried adding

<?php if ( is_home() ) {
query_posts($query_string . ‘&cat=-97’);
}
?>

to the single.php and functions.php (one at a time) without success.

Do I have the wrong code, or am I pasting it in the wrong place? I’m pretty sure the category&tag_ID is 97.

Thank You,

Jamie