How do you change a front drivers side CV axle assembly on a 2000 Plymuth Neon?

Best advice I can give you is to purchase an aftermarket repair manual from a parts store. I like the Haynes manuals from Auto Zone. generally give step by step details with pictures. I could try to tell you how here but you would be better getting a book and studying it first, plus the book covers all sorts of other repairs and all tech info, (torque settings, etc.). If its not in the manual you probably need to seek more professional help anyway. Most basic repairs are covered in these books along with maintanance procedures and service intervals. Same advice I give everybody, Got the Car, Get the Book!! Mopar Carl