Can anyone identify this CM system?

[For those of us who like detective novels:] My organization has asked me to consult on a web site which was written by one of our field offices. Unfortunately, there's no one around anymore who was part of the original program. The kicker is that it's all in Russian. It's at http://www.fzr.ru. It's titled "Health Russia 2020" and concerns HIV/AIDS in Russia. Can identify the content management system in use? It seems php based, and I wondered if anyone can identify it from the query strings it uses. I'm hoping that it's a common CM system, with documentation in English, but it could have been custom written. I'm told that they had nine programmers working on it for a significant period of time. Thanks for looking at it, and your thoughts. -Kevin Zembower