Leave out Forum ID in SEARCH.php Option

[jiggle]

Hi,
I have a single subforum with many threads and posts. I want to leave out this complete Forum (ID is 153) out of the search option for

search.php?action=getdaily

How can I handle this ? What needs to be changed in the search.php

At vbulletin-germany.com I was told to find:

$forumsql.=",$forum[forumid]";

and replace with

if ($forum[forumid] != 153) {
$forumsql.=",$forum[forumid]";
}

but this is not working. The Search.php runs correctly but still shows the Forum ID153. What still needs to be change to have the effect of leaving out a single Forum ID for the getdaily option ?
Regards
Andy