I have spend a good 1000 hours developing a solid Flash chat framework for everyone who always wanted to create a Flash Chat. This chat is coded in AS3 and works with PHP and XML. It's 100% customizable in terms of design, emoticons, sound effects, etc. and the special thing about it is the installation process. I tried to find a method that would save users from a tedious installation procedure. I managed to figure out a way using XML files to save the chat data. Using this method, the chat works simply after uploading to FTP, there is no configuration necessary, it works right out of the box.
This is the first software I am ever attempting to sell online. Please comment on the chat and the website.