Help with a Google Image Script

Hi,
I installed a Google Image Script from hotscripts that will show google images on my site page. But, when I click on the thumb it does not show the larger image. Not sure how to edit the code to make the thumb clickable to larger.

Thanks for any help!!
Wamh

P.S. If you know of a better script to show images on my site, I'd appreciate that too!

My page: http://www.scubabyte.com//Google-Leech_image_search/isearch.php?q=scuba+

Script here: http://www.hotscripts.com/Detailed/51819.html

Instructions here: Open config.inc and edit only until you see // No need to edit below here

--------------------------------------------------------------------------

Code here:


<?

// Name of your site
$sitename = "Image Search";

//Your www.domain.com address *Do not use http://
$domain = "www.domain.com";

// Path from www without trailing slash /
$pathtoscript = "/webimages";

// Body Tag Attributes * Any of these can be left blank
$bgcolor =""; // Background Color
$text =""; // Text Color
$link =""; // Link Color
$alink =""; // Active Link Color
$vlink =""; // Visited Link Color
$backgroundimage = "http://www.domain.com/images/background.jpg"; // Background Image

// Header and Footer files
// If they are located somehere else then show full path ex: /home/user/www/header.txt
$headerfile = "header.txt";
$footerfile = "footer.txt";


// Result text that shows after an image is clicked
$displaytext = "Your Image From $sitename";





// No need to edit below here
// #######################################################

// 0 represents "showing no errors"
// Replacing with E_ALL will "show all errors"
error_reporting(0);


// Image Variables - imgurl=(image location) imgrefurl=(webpage image was found) h=(height) w=(width) sz=(size)
$imgurl = 'imgurl';
$imgrefurl = 'imgrefurl';
$h = 'h';
$w = 'w';
$sz = 'sz';

// imagetype - you cannot add more than the 3 filetypes used here
$jpg = 'jpg';
$gif = 'gif';
$png = 'png';

// image size - you cannot add more than the 3 types used here
$icon = 'icon';
$meduim = 'small|medium|large|xlarge';
$xxlarge = 'xxlarge';
// image colors - you cannot add more than the 3 types used here
$mono = 'mono';
$gray = 'gray';
$color = 'color';


$lang = "en";
$start = $_GET['start'];
$q1 = $_GET['q'];
$q = str_replace(" ", "+", $q1);
$turl = "/imgres?";
$nurl = "http://images.google.com/imgres?";
$therecolor = "#e7eefc";
$ourcolor = "#99CCFF";
$thumnew = "http://images.google.com/images?q";
$thumold = "/images?q";
$didyoumeanold = "/images?svnum";
$didyoumeannew = "$pathtoscript/isearch.php?svnum";
$imagesizeold = "/images?imgsz";
$imagesizenew = "$pathtoscript/isearch.php?imgsz";
$imagecolorold = "/images?imgc";
$imagecolornew = "$pathtoscript/isearch.php?imgc";
$url = "http://images.google.com/images?q=$q&hl=$lang&as_filetype=$imagetype&imgsz=$imgsz&imgc=$imgc&start=$start";
// $url = "http://images.google.com/images?q=$q&hl=$lang&start=$start";
$lines_array = file($url);
$lines_string = implode('', $lines_array);

?>