OOP AdressBook Errors in main

[Vorstoss]

I'm almost done with this program but I am stumped on the errors I'm getting in main. Any help would be appreciated.

Here are the errors:
error C3861: 'addPerson': identifier not found
error C3861: 'getPerson': identifier not found
error C3861: 'findPerson': identifier not found
error C3861: 'findPerson': identifier not found
error C3861: 'printBook': identifier not found

main:

#include <iostream>
#include <cstdlib>
#include <conio.h>
#include "addressbook.h"


using namespace std;
int printMenu();
void waitKey();

const int ADDPERSON = 1;
const int GETPERSON = 2;
const int FINDLAST = 3;
const int FINDBOTH = 4;
const int PRINT = 5;
const int EXIT = 0;

int main()
{
	addressBook* instance;

	int selection;
	PERSON p;
	bool status;
	char lName[50];
	char fName[50];

	selection = printMenu();
	while(selection != EXIT )
	{
		switch(selection)
		{
		case ADDPERSON :
			cout << "Enter First Name " << endl;
			cin >> p.fName;
			cout << "Enter last Name " << endl;
			cin >> p.lName;
			cout << "Enter Address " << endl;
			cin >> p.Address;
			status = addPerson(p); //ERROR
			if(status == false)
				cout << "Sorry There is no more room in the address book " << endl;
			else
				cout << "Thanks for your Entry " << endl;

			waitKey();	
			break;
		case GETPERSON :
			status = getPerson(p); //ERROR
			if(status)
				cout << p.fName << "\t" << p.lName << " " << p.Address << endl;
			else
				cout << "Sorry The address book is empty " << endl;

			waitKey();

			break;
		case FINDLAST :
			cout << "Enter a last name " << endl;
			cin >> lName;
			status = findPerson(lName,p); //ERROR
			if(status)
				cout << p.fName << "\t" << p.lName << " " << p.Address << endl;
			else
				cout << "Sorry, Name not found " << endl;

			waitKey();
			break;

		case FINDBOTH :
			cout << "Enter last name " << endl;
			cin >> lName;
			cout << "Enter first name " << endl;
			cin >> fName;
			status = findPerson(lName, fName,p); //ERROR
			if(status)
				cout << p.fName << "\t" << p.lName << " " << p.Address << endl;
			else
				cout << "Sorry, Name not found " << endl;

			waitKey();
			break;

		case PRINT :
			printBook(); //ERROR
			waitKey();
			break;
		case EXIT :
			cout << "Thanks for using the address book " << endl;
			exit(0);
		}
		selection = printMenu();
	}
}

int printMenu()
{
	int selection;

	system("CLS");
	cout << "1. Add A Person" << endl;
	cout << "2. Get A Person " << endl;
	cout << "3. Find A person By Last Name " << endl;
	cout << "4. Find A person By First and Last Name " << endl;
	cout << "5. Print the address book" << endl;
	cout << "0. Exit this program " << endl;
	cin >> selection;

	return selection;
}

void waitKey()
{
	cout << "Press a key to continue " << endl;
	while(!kbhit())
		;

	getch();
	fflush(stdin);

}

header file:

#ifndef _ADDRESSBOOK
#define _ADDRESSBOOK

const int MAXADDRESS = 25;

struct PERSON
{
	char fName[25];
	char lName[25];
	char Address[100];
	
};
class addressBook
{
private:
	PERSON people[MAXADDRESS];
	int head;
	int tail;

public:
	addressBook();
	bool addPerson(const PERSON &p);
	bool getPerson(PERSON &p);
	bool findPerson(char *lastName, PERSON &p);
	bool findPerson(char *lastName, char *firstName, PERSON &p);
	void printBook();
	static addressBook *Instance();


};
#endif 

addressBook.cpp:

#include <iostream>
#include "addressBook.h"

using namespace std;

addressBook::addressBook()
{
	head = 0;
	tail = -1;
}
bool addressBook::addPerson(const PERSON &p)
{
	if(head < MAXADDRESS)
	{
		people[head] = p;
		head++;
		if(tail == -1)
			tail++;
		return true;
	}
	return false;
}
bool addressBook::getPerson(PERSON &p)
{
	if(tail >=0)
	{
		if(tail >= head)
			tail = 0;
		p = people[tail];
		tail++;
		return true;
	}
	return false;
}
bool addressBook::findPerson(char *lastName, PERSON &p)
{
	for(int i = 0; i < head; i++)
	{
		if(!stricmp(people[i].lName, lastName))
		{
			p = people[i];
			return true;
		}
	}
	return false;
}
bool addressBook::findPerson(char *lastName, char *firstName, PERSON &p)
{
	for(int i = 0; i < head; i++)
	{
		if(!stricmp(people[i].lName, lastName) && !stricmp(people[i].fName, firstName))
		{
			p = people[i];
			return true;
		}
	}
	return false;
}
void addressBook::printBook()
{
	for(int i = 0; i < head; i++)
	{
		cout << people[i].fName << "\t" << people[i].lName << "\t" << people[i].Address << endl;
	}
}

[Peter87]

You have to call the getPerson function on an addressBook object. Same with the other functions that are members of addressBook.

[Vorstoss]

Ahh, stupid mistake. I fixed it. Thanks for your time Perter87.