linker problems

[maeda]

Well hi everybody... I have problems with linker in Visual Studio Express edition 2008 and in Dev Cpp 4.9.9.2.

Visual Studio gives me :
testarrtemplate.obj : error LNK2019: unresolved external symbol "class std::basic_ostream<char,struct std::char_traits<char> > & __cdecl operator<<(class std::basic_ostream<char,struct std::char_traits<char> > &,class Array<int,3> const &)" (??6@YAAAV?$basic_ostream@DU?$char_traits@D@std@@@std@@AAV01@ABV?$Array@H$02@@@Z) referenced in function _main
testarrtemplate.obj : error LNK2019: unresolved external symbol "public: __thiscall Array<int,3>::Array<int,3>(void)" (??0?$Array@H$02@@QAE@XZ) referenced in function _main

Dev Cpp gives me:
[Linker error] undefined reference to `Array<int, 3>::Array()'
[Linker error] undefined reference to `operator<<(std::ostream&, Array<int, 3> const&)'

Here's the code :

//Array.h
#ifndef ARRAY_H
#define ARRAY_H

#include <iostream>
using namespace std;

template <class T, int numberelements>
class Array
{
	friend ostream & operator<<(ostream &, const Array<T, numberelements> &);
	friend istream & operator>>(istream &, Array<T, numberelements> &);
public:
	Array(void);
	const Array<T, numberelements> & operator=(const Array<T, numberelements>&);
	Array<T, numberelements> operator+(const Array<T, numberelements> &) const;
private:
	T array[numberelements];
};
#endif
//Array.cpp
#include "Array.h"
#include <iostream>
using namespace std;

template <class T, int numberelements>
ostream & operator<<(ostream &output, const Array<T, numberelements> &arr)
{
	for (int i = 0; i < numberelements; i++)
		output << arr.array[i] << " ";

	return output;
}

template <class T, int numberelements>
istream & operator>>(istream &input, Array<T, numberelements> &arr)
{
	for (int i = 0; i < numberelements; i++)
		input >> arr.array[i];
}

template <class T, int numberelements>
Array<T, numberelements>::Array(void)
{
	for (int i = 0; i < numberelements; i++)
		array[i] = 0;
}

template <class T, int numberelements>
const Array<T, numberelements> & Array<T, numberelements>::operator=(const Array<T, numberelements> &right)
{
	for (int i = 0; i < numberelements; i++)
		array[i] = right.array[i];

	return *this;
}

template <class T, int numberelements>
Array<T, numberelements> Array<T, numberelements>::operator+(const Array<T, numberelements> &right) const
{
	Array<T, numberelements> temp;

	for (int i = 0; i < numberelements; i++)
		temp.array[i] = array[i] + right.array[i];

	return temp;
}

//testarraytemplate.cpp
#include "Array.h"
#include <iostream>
using namespace std;

int main(void)
{
	Array<int, 3> a1, a2, a3;

	cout << a1;
	cin.get();

	return 0;
}

Thanks for help in advance!!!