I'm sure the developer has put a huge amount of time into creating this extension, but it was a huge waste of my time to try to install it. Might be able to get it to work if you use a stock Joomla template, but of the two iTemplater templates I tried neither would display the captcha. Yes, I followed the install directions to the letter, including the awful pain of manually uploading the numerous patch files via ftp. Read the forum on his site, the FAQ, etc, tried reinstalling twice, and no luck. After I got to his instructions on how to download a program and use php coding to develop your own new patch files ("It's like a game!" he says), I figured I'll leave this extension to someone who has a lot more free time than I do. Even if I had been able to get this to work, the though of having to manually update all the different patch files after upgrading Joomla (every time!) made me want to forget the whole thing. Think twice before you jump into this mess.