PHP Application Firewall?

I was discussing with Christ1an recently about application firewall and he actually presented me an application firewall written by pdp and maintained by .mario , which to me is very impressive. I actually looked at the source code and i must say that i don't understand a single shit. However, it was a nice effort from Christ1an and guys devoting their time to develop a php application firewall. I am network guy, i do web audit, but i am not good in coding or programming or source code review. Well, i am still learning, i want Christ1an on my team as i think he will be a very good addition to the company. Hey Christ1an, if you read this, please holla at me alright? I want to chat with you about career opportunities, you know how to reach me. Also, for guys who wants a SQLI cheat sheet, check this out:

http://ha.ckers.org/sqlinjection

http://ferruh.mavituna.com/makale/sql-injection-cheatsheet

Check out the PHPIDS Team's IDS and their XSS database

http://php-ids.org

http://www.gnucitizen.org/xssdb/application.htm

The Hacka Man