Login-Image error


I have read the forums before installing the rebranding plugins and found that the php files needed to placed in their respective folders one at a time. I followed the instructions and when I go to upload my image I get an error page that reads below:

"Internal Server Error

The server encountered an internal error or misconfiguration and was unable to complete your request.

Please contact the server administrator, support@supportwebsite.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.

More information about this error may be available in the server error log.

Apache/1.3.33 Server at domain name Port 80"

My understanding is that the login-image.php is place in the mu-plugins folder and the /login-image/ folder is created within the /wp-content/ folder. Am I correct with the installation instructions? Is the second step creating an empty folder?

The login-image interface is available under the site admin and I have changed all of the images as the specified by the installation instructions. I need to have this asap so any help would be greatly appreciated.

Thanks in advance,