In my PHP folder I moved php_gd2.dll from the ext folder to the mail php folder and this problem was solved. Unfortunately the PHP instructions at: http://www.php.net/manual/en/install.windows.iis.php
don't say you must do that. (it's too bad that the PhotoPost people can't document their ENTIRE installation process...)
I was unable to get PHP 4.3.10 working due to lack of installation instructions for W2K3 server. There was a user contributed installation for V5.0 for W2K3 and I was able to follow that and make it work.
Any ideas on the MySQL issue? There is another reference to it in the forum but the solution is to "properly configure a user" for MySQL. And then a reference to the MySQL documentation.
What SPECIFIC user configuration is needed for PhotoPost?