Errors with GallerySetupUtilities.class

I am getting a list of error messages when I go to my install/index.php the first time. All these errors have to do with the file: GallerySetupUtilities.class

I uploaded the latest version of Gallery 2.2.4, full version on my iPower webserver.

Here is the URL: http://www.claredemocrats.com/gallery/install/index.php

Please help,
Sheryl

Gallery version: 2.2.4
PHP version 5.0
PHPInfo Link: /usr/local/bin/php
Webserver: Apache 1.3.33
Database: 5.0.45
Activated toolkits: ?
Operating system: UNIX-based operating systems (such as Linux and Solaris) on Apache web servers. Currently, we are running Apache 1.3.33 on Redhat Linux 7.3 and 9.0 servers.
Browser: IE 7