If you are trying to use Drupal on Yahoo! Webhosting, then I have some bad news for you.
The current versions of PHP and MySQL on Yahoo! Webhosting do not meet the required specification for many CMS.
I have checked the version information for MySQL and PHP on my maakusan.com domain on Yahoo! Webhosting :
PHP version 4.3.11
MySQL version 4.1.14
Drupal recommend :
PHP 5.2 or higher
MySQL 4.1 or higher for Drupal 6
MySQL 5.0 or higher for Drupal 7
Joomla recommend :
PHP
minimum version 4.3.x for Joomla v1.5
recommended version 4.4.7 for Joomla v1.5
optimum version 5.0.x series for Joomla v1.5
MySQL
minimum version 3.23.x or above for Joomla v1.5
recommended version 4.1.22 for Joomla v1.5
optimum version 5.0.x series for Joomla v1.5
CMSMadeSimple recommend :
PHP version 4.3+ (version 4.3.3+ required for pretty URL's)
MySQL versions 3.23 or higher
Yahoo! Small Business Support have informed me that they have no intention of upgrading the installations of PHP and MySQL on the server that hosts my domain. In addition, all of their servers are on the same versions of PHP and MySQL and therefore this problem cannot be overcome by moving my domain onto another server.
I also noted some key settings of the current PHP configuration directives on my Yahoo! Webhosting PHP installation :
register_globals: on;
session.save_handler: files
error_reporting set to 2036
This conflicts with the Drupal requirements :
register_globals: off;
session.save_handler: user
error_reporting set to E_ALL
Yahoo! Small Business Support have informed me that they cannot change these PHP configuration directive settings for individual accounts, which conflicts with some reports from other users.
In summary, you can bypass the Drupal 6 install script by resetting the register_globals directive but Yahoo! Webhosting does not meet the minimum requirements for Drupal 6 and above.
You can get Joomla v1.5 to run on Yahoo! Webhosting but it runs slow because Yahoo! Webhosting does not meet the recommended specification.
You can get CMSMadeSimple to run on Yahoo! Webhosting but only without pretty URL's.
I have been checking the requirements between Drupal, Joomla, and CMSMadeSimple because of the recent CMS Awards '08. I have been using CMSMadeSimple but I would like some additional features that means I need some quality hardcopy documentation, which is not available for CMSMadeSimple.
All of this means that I will now have to look into moving my domain from Yahoo! Webhosting onto a Drupal webhosting solution that will support the current and future versions of Drupal. I have already blogged further information about my experience installing CMSMadeSimple and trying to get it to use pretty URL's.
One final thing to mention is that Yahoo! Webhosting does not currently allow you to upload .htaccess files to your account, which unfortunately is one of the requirements of installing Drupal.