Generating Polynomials using Linked Lists

Hi, I really need help with this Polynomial Programming assignment
In this assignment we are suppose to have two classes PolyList and PolyArray in order to generate polynomials,
PolyList class have functions like, insert, retrieve and sorting of polynomials with respect to exponents.
and PolyArray class has function like Create to create a new Polynomial and put it in the List in PolyList class, PolyArray adds, subtracts and multiplies two polynomials, I just need the couple of fucntions
Create, Insert, Sort
and an idea of how to create POLYArray and link it with the list class to store the polynomials that user generates.

I will be greatful for any help at all,
thanks,
Aamir