That is sooo cool what you did with the stats.. I havent looked at the code for some time now and with both php and mysql updated, some of it would have fallen into the depreciated bucket.
I ceased using the ftp function since i wrote a small app to run on the game server which uploads the stats file as soon as each game finishes. this saves the need for the ftp feature, I guess i left it there in case i ever wanted to revive it or re vamp it in some way,
Feel free to make a community release as i wrote the software for the players.
Also, it should read and support co-op games as well as other modes but i was always un able to test that side due to a lack of match logs.