Help with C++ (im new)?

Im a java programmer switching to c++ for the first time and using MS Visual Studio 2010. Im getting the following errors that I dont understand: "Error 5 error C2065: 'CAPACITY' : undeclared identifier"

and

"Error 13 error C2065: 'current_index' : undeclared identifier"

However both of thesee things are declared in my .h file. here is the code:

#include "pgm1.h"

using namespace std;

sequence() {

value_type numbers[CAPACITY];

used=0;

current()= numbers[used];

int current_index=0;

}

void sequence::start(){

current()=numbers[current_index];

}

void sequence::advance(){

current_index+=1;

current()=numbers[current_index];

}

void sequence::insert(const value_type& entry){

if (used!=0){

int i = used-1 ;//counter starts at the end of array

used++;//add one to used to accomadate new length

int temp = current_index-1;

while (i >= temp){

numbers[i+1]=numbers[i];

i--;

}//while the counter is greater than or equal to the current_cell, rewrite the number[counter+1] with the value in numbers[counter]

numbers[current()-1]=entry; //then once all numbers have been moved fill the empty cell with the given value

}//if more than 0 cells have values run the loop

}//end function

/*

void sequence::attach(const value_type& entry){

}

sequence::remove_current( )

size_type size( ) const

bool is_item( ) const

value_type current( ) const

{}*/

and the code for the .h (pre/post conditions not included for brevity):

#include <cstdlib> // Provides size_t

namespace main_savitch_3

{

class sequence

{

public:

// TYPEDEFS and MEMBER CONSTANTS

typedef double value_type;

typedef std::size_t size_type;

static const size_type CAPACITY = 30;

// CONSTRUCTOR

sequence( );

// MODIFICATION MEMBER FUNCTIONS

void start( );

void advance( );

void insert(const value_type& entry);

void attach(const value_type& entry);

void remove_current( );

// CONSTANT MEMBER FUNCTIONS

size_type size( ) const;

bool is_item( ) const;

value_type current( ) const;

private:

value_type data[CAPACITY];

size_type used;

size_type current_index;

};

}

#endif