I've uploaded the latest version (V1.3.7.1 full patch 07052007.zip) to my website. Did all CHMOD and created an MySQL database.

The zc_install/index will only progress to the System Setup page. When I then click "Save System Settings" I go back to the "Welcome " page. When going to the 'Welcome' page for the second time, the URL is "
.../zc_install/index.php?main_page=system_setup&language=english&sql_cache=/users/web/webtrix/web/cart2/cache&is_upgrade="

I don't have phpBB installed.

The info at the "Prerequisites" step all looks good.....

System Inspection Results

Webserver = Apache/1.3.29 (Unix) FrontPage/5.0.2.2635

HTTP Host = https://www.webtrix.com.au

Path_Translated = /users/web/webtrix/web/cart2/zc_install/index.php

Server Free Disk Space = 1.1 GB

PHP O/S = Linux

PHP API Mode = cgi Click here for more info

PHP Max Execution Time per page = 30

Register Globals = ON Click here for more info

MySQL Support = ON

MySQL Version = 3.23.58

PHP Version = 4.3.4

PHP Safe Mode = OFF

PHP Sessions Support = ON

PHP Session.AutoStart = OFF

PHP session.use_trans_sid = OFF

Current SQL Cache Folder = /users/web/webtrix/web/cart2/cache -->Writeable

Suggested SQL Cache Folder = /users/web/webtrix/web/cart2/cache

PHP magic_quotes_runtime setting = OFF

PHP GD Support = ON

GD Version = GD bundled (2.0.15 compatible)

PHP ZLIB Compression Support = ON

PHP cURL Support = ON

PHP Upload Support = ON upload_max_filesize=25M; post_max_size=8M

PHP Upload TMP dir =

Other System Information (For Reference Only)
The following info does not necessarily indicate any problem or configuration issue. It is simply for the sake of displaying it in an easy-to-find location.

* PHP include_path = .:/usr/local/share/pear:/php/includes:/usr/share/php
* PHP SMTP destination = localhost
* PHP sendmail path = /usr/sbin/sendmail -t -i
* PHP sendmail 'from' = [email protected]
* PHP open_basedir restrictions =
* PHP Output Buffering (gzip) = OFF
* PHP FTP Support = ON
* PHP XML Support = ON
* PHP Session.Save_Path = /tmp  -->Writeable

File and Folder Permissions
In order for many Zen Cart™ administrative and day-to-day functions to work properly, You need to mark several files/folders "Writeable". The following is a list of folders which need to be "read-write", along with recommended CHMOD settings. Please correct these settings before continuing installation. Refresh this page in your browser to re-check settings.

Some hosts may not allow you to set CHMOD 777, but only 666. Start with the higher setting first, and switch to lower values if required.

* includes/configure.php = Writeable
* admin/includes/configure.php = Writeable
*  
* cache = OK
* images = OK
* includes/languages/english/html_includes = OK
* media = OK
* pub = OK
* admin/backups = OK
* admin/images/graphs = OK

Any help much appreciated.