Controlling movie clip - horizontal movement

controlling movie clip - horizontal movement
I am looking to make a flash movie, which will react to my mouse’s position and move the movie clip horizontally within the flash movie. Some examples of this can be found here.

http://www.kanyeuniversecity.com/
http://www.karmacentral.com.au/

I prefer the kanye one as it is not as touchy with detection of the mouse (More user friendly). I like the depth of field on items in the foreground and the background (look as if they are on to different motions in both examples. If that is achievable, that would be perfect for what i’m trying to achieve.

If some one can point me in the direction of a tutorial or sample files or code, that would be great.