You simply have to implement the API into your game that records stats like "What level you are up to". Then when the staff member who adds badges can just make a badge for getting up to a certain level. Do you have MSN? I can explain it alot easier to you on that, and I can also have a go at putting the API into your game for you.
There will be no badges added until a proper API is added. How to intergrate the API into your game: http://www.kongregate.com/forums/4/topics/475 and http://www.kongregate.com/forums/4/topics/151