Box2D Forums

I want to create a simple 2d platformer game, after seeing some videos of terraria from demilogic, on their main site they said they used c# and xna, well i managed to create a simple platformer in that, only the collision detection really fails when the player tries to see if he is colliding with a wall while he is standing on the ground, so i was wandering if there are any tutorials on a platformer game made in box2dx?