Paginator class: browsing pages doesn't work

Hi,

I'm having a problem with a paginator class. My page shows the correct amount of pages, but when I click on the link to go to the next page, the following page only shows the content of the first page, so I can't actually browse the pages.

This is the class that I'm using:

<?php
class paginator {

	var $current_page;
	var $total;
	var $per;
	
	function paginator () {
	}
		
	function render() {
	
		$this->current_page = $_GET['page']; if (empty($this->current_page)) { $this->current_page = 1; }
		$number_of_pages				= ceil($this->total / $this->per);
		
		if ($number_of_pages > 1) {
			$previous_page				= $this->current_page - 1; if ($previous_page < 1) { unset($previous_page); }
			$next_page					= $this->current_page + 1; if ($next_page > $number_of_pages) { unset($next_page); }
		}

		echo '<div class="paginator">'."\n";
		echo '<ul>'."\n";
		
			for($i=1; $i < $number_of_pages+1; $i++) {
			
		echo '<li><a title="Page '.$i.' of '.$number_of_pages.'"';
			if ($this->current_page == $i) { 
		echo ' class="active"';
			} 
		echo' href="';
		echo uri_builder('page='.$i);
		echo '">';
		echo $i;
		echo '</a></li>'."\n";
			
			}	
		
		if ($previous_page) {
		echo '<li><a title="Previous Page" href="'.uri_builder('page='.$previous_page).'">&lsaquo;&lsaquo;</a></li>';
		}
		if ($next_page) {
		echo '<li><a title="Next Page" href="'.uri_builder('page='.$next_page).'">&rsaquo;&rsaquo;</a></li>';
		}
		echo '</ul>'."\n";
		echo '</div>'."\n";
		
	}

}

PHP:

The following code is from the page with the ouput:
(results_per_page comes from a separate config file which is included in the output page)

  $paginator->total   = count($mysql->mysql_array("SELECT * FROM productfiles"));
  $paginator->per    = $module['config']['display']['results_per_page'];
  
  $order      = order(array("orderby" => $_GET['orderby'],"order" => $_GET['order']));
  $limit      = limit(array("current_page" => $paginator->current_page,"per" => $paginator->per));
  $query      .= " SELECT * FROM productfiles";
  $query      .= " ".$order['query'];
  $query      .= " ".$limit['query'];
  $paginator->render();

PHP:

Could someone tell me what could be wrong with this?

cheers,

motofzr1000