Sorry buurmas that's a warez site and while much of it is freeware, much of it is not.
I haven't played the pyRunner version, but scavenger has a level editor (which should be functional once i remap the keys). What does it lack that pyRunner has? If pyRunner is better i can help with that instead of spending more time fixing up scavenger. One of the planned improvements in scavenger is to make the accelerometer control work properly (it already supports joystick input, it just needs to be fixed up).