Help in BGE

Hello Im crossedeyefreak, Im new here, but have been using blender for 2 years.

I want to know how to Set up a jump animation so that when you jump, you go to jump and when you land, you go back to idle.

Also, I would like to know how to make it so the collision box doesnt jump around during gameplay.

I recomend you to check out the 3 part of the BGE Tutorials set up by the guys form blender Cookie, really good info, short and actually it would solve your problems.

Alright. Thank ya much.