I'm missing something really easy but I can't figure out what.

The identifiers are not picking up.

Code:
#include "stdafx.h"
#include "stdlib.h"
#include <iostream>
#include <cmath>
#include <iomanip>
#include <cstdlib>
#include <ctime>

using namespace std;

int id;
int age;
long phone;
long creditcard;

int main()
{
cout << "Please enter Customer ID (0-49): " <<endl;

if (id > 49&& id <0)
{
cout << "ERROR: Please enter Customer ID (0-49): " << endl;
}
fill_values (age, phone, creditcard);
securitypreference (security);

if (security == 0)
{
print_secure (id, age);
}

else
{
print_all (id, age, phone, creditcard);
}

}

void fill_values()
{
srand(time(0));
age = (rand() % 40) + 20;
phone = (rand() % 8999999) + 1000000;
creditcard = (rand() % 8999) + 1000;
}

int security_preference()
{
srand(time(0));
security = (rand() % 2);
return security;
}

void print_secure(id,age)
{
srand(time(0));
cout << id << endl; 
cout << age << endl;
}

void print_all(id, age, phone, creditcard)
{
cout << id << endl; 
cout << age << endl; 
cout << phone << endl; 
cout << creditcard << endl; 
}
I'm getting the following errors:

1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(24) : error C3861: 'fill_values': identifier not found
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(25) : error C2065: 'security' : undeclared identifier
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(25) : error C3861: 'securitypreference': identifier not found
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(27) : error C2065: 'security' : undeclared identifier
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(29) : error C3861: 'print_secure': identifier not found
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(34) : error C3861: 'print_all': identifier not found
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(41) : warning C4244: 'argument' : conversion from 'time_t' to 'unsigned int', possible loss of data
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(49) : warning C4244: 'argument' : conversion from 'time_t' to 'unsigned int', possible loss of data
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(50) : error C2065: 'security' : undeclared identifier
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(51) : error C2065: 'security' : undeclared identifier
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(55) : error C2448: 'print_secure' : function-style initializer appears to be a function definition
1>c:\users\mike\documents\visual studio 2008\projects\final\final\final.cpp(62) : error C2448: 'print_all' : function-style initializer appears to be a function definition
1>Build log was saved at "file://c:\Users\Mike\Documents\Visual Studio 2008\Projects\Final\Final\Debug\BuildLog.htm"
1>Final - 10 error(s), 2 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========