3ds max: CS help needed

I need a little help with character studio. I have a motion of a karate but i made a new layer and with auto key rotate the bip bone to change the postion.
The biped rotates very well but the move don't rotate
It takes the old route..
Anyone can help?
I mean i need to rotate my main .bip to other side but with full moves and walks

If you plan to do it after the other stuff I think you may have a problem
I don't have much experience when it comes to animation
But my (little) experience so far tells me that it may be a problem doing such a thing afterwars
Might be hard to synchronise well