So you want all other names to break into 2 lines, but one name to stay on one line?
Open functions.php.
Find:
PHP Code:
$post[message]=bbcodeparse($post[pagetext],$forum[forumid],$post[allowsmilie]);
Underneath, add:
PHP Code:
if ($post[userid]==xx) {
$post[username]="<nobr>$post[postusername]</nobr>";
}
Replace xx with the userid of the user you want the username to stay on the same line. That should do it.
And by the way... fix up that bad attitude of yours. Boofo and I are trying to help you here.