I think I've installed all the prereq's but when i go to zencart (http://localhost/~kurtrr/zencart/) i get a page of text. And when I go to http://localhost/~kurtrr/zencart/zc_install it opens up another text page. I'm using Ubuntu 13.04 with the prereq software loaded from it's app source.

http://localhost/~kurtrr/zencart/ has the following as the first few lines:*
Load application_top.php - see {@tutorial initsystem}
*
Set main language directory based on $_SESSION['language']
*
Load all *header_php.php files from includes/modules/pages/PAGE_NAME/
*
Load html_header.php (this is a common template file)
*
Load main_template_vars.php (this is a common template file)
*
Load on_load scripts (page based and site wide)
*
Load tpl_main_page.php (this is a common template file)
*
Load application_bottom.php
* * * @package general * @copyright Copyright 2003-2005 Zen Cart Development Team * @copyright Portions Copyright 2003 osCommerce * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0 * @version $Id: index.php 2942


and http://localhost/~kurtrr/zencart/zc_install has for the first few lines:
0) { for ($i=1;$i<$argc;$i++) { $it = preg_split("/=/",$argv[$i]); $_GET[$it[0]] = $it[1]; // parse_str($argv[$i],$tmp); // $_REQUEST = array_merge($_REQUEST, $tmp); } } if (!isset($_GET) && isset($_SERVER["argc"]) && $_SERVER["argc"] > 1) { for($i=1;$i<$_SERVER["argc"];$i++) { list($key, $val) = explode('=', $_SERVER["argv"][$i]); $_GET[$key] = $_REQUEST[$key] = $val; } } } // init vars: $zc_first_field = ''; // begin processing page-specific actions if (!isset($_GET['main_page']) || !z

The install went fine on my laptop which is also U13.04.
thanks, kurtRR