Stuck on Lists

Hey, I am having some problems with this program that was given to me. I was given the main program and had to create a list class to use the fxns called in the main program. Well, I am having some problems with the functions themselves (what to put in them). Oh, the data manipulated is in an array without using pointers. I have included the main program

here is the code for the header:

Code:

#include <iostream>
using namespace std;

class List
{
public:
typedef int value_type;
static const value_type CAP=30;
value_type mylist[CAP];
List();
List(List& x);
//void destroy();
//void assign();
void remove();  //destroy operation
void first(); //first operation
void next(); //next operation
void prev(); //previous operation
void Makecurrent(); //makecurrent operation
value_type examine(); //examine operation
void replace(value_type v); //replace operation
value_type insertafter(value_type v); //insert after operation
value_type insertbefore(value_type v); //insert before operation
value_type size(); //Count operation
friend ostream & operator<<(ostream& out, List x)
{
return out << x;
}

private:
int pos;
int used;
};
List::List()
{
pos=0;
used=0;
}
List::List(List& x)
{
pos=x.pos;
used=x.used;
}
void List::remove()
{

}
void List::first()
{
pos=mylist[0];

}
void List::next()
{
if(pos<used)
pos++;
}
void List::prev()
{
if(pos>used)
{pos--;}
pos--;
}
List::Makecurrent()
{

}
value_type List::examine()
{
return pos;

}
void List::replace(value_type v)
{


}
value_type List::insertafter(value_type v)
{
	
if(used>CAP)
	return 0;
for(int i=used;i>pos;i--)
	mylist[i+1]=mylist[i];
	pos++;
	mylist[pos+1]=v;
	used++;
	return 1;
}
value_type List::insertbefore(value_type v)
{
if(used==0)
	return 0;
//for(int i=)
}
value_type List::size()
{
return used;

}

thanks