I have successfully installed previous versions of CMS on hosted environments, but now am trying to do it on my own server and am drawing a blank, literally.

Info:
Platform: Windows 2003 Server, IIS 6.0, MySQL 4.1.18, PHP 5.0.2
Phpinfo: http://www.bakeru.edu/registrar/phpinfo.php
Basically, I downloaded 1.4.1, or the latest version, and I initially only got a blank page after the redirect to /install/index.php. Once I gave permissions to the tmp folder, I at least got the /install/index.php to appear where it asks you to select your language of choice. From there, all I get is a blank page. Once, I refreshed, and actually got a PHP access violation error. That hasn't happened again though.
Php sessions are enabled and working fine on this machine. I run lots of other php web apps on this server with no difficulties.
Any thoughts or advice?
Thanks,
Toby