You have to ask cvet for something like this (the Belorussian guy who created the engine). Some people have access to the source code, but they can't share it with anyone else, because sadly the engine isn't open source. It's probably the easiest to catch him on IRC or maybe fonline.ru, you can PM him here but I don't think he visits this forum too much. And I would imagine giving access to closed source first requires some level of trust.
