I need an extremely stable Captcha entry system similar to [url removed, login to view] This must be written in PHP and use Mysql. The system should come with a .NET dll that will allow images to be sent to typists and also report badly solved images. Each typist should be able to log in to the web server with a unique log in and can view their statistics there. Payment will also be calculated there. There should be an admin login that will allow me to view overall statistics across all typists. I need this software now so I'm only looking for a solution that has already been developed. This system should be able to support 1000 images being solved concurrently.