I downloaded the Gallery Thingie file and noticed that in the gt-pub.php there are several for loops.
Example:
Code:
function displayList($phpfile, $linktitle = "number") {
global $name, $id, $category, $cat, $title, $path;
for ($i=0;$i<count($name);$i++) {
You can replace the count with the amount that you want to be displayed, but that would mean that you have to implement a page function...