Lil Help

The error in the code is is in Tokenise i think its when token doesnt = NULL it tries to put it in the array still so it crashes please help

************ code******************
#include "iostream"
#include "string"

using namespace std;

using std::string;

void Tokenise(char *istring, string *array,int size,char *seps);

int main()
{

string sarray[25];

char instring[]= "This is a String";

Tokenise(instring,sarray,25," ");
cout << sarray[0];
system("pause");

return 0;

}



void Tokenise(char *istring, string *array,int size ,char *seps)
{

/* Establish string and get the first token */
int i = 1;
char* token = NULL;

token = strtok( istring, seps );

array[0] = token;

while( token != NULL)
{

/* Get next token */
token = strtok( NULL, seps );

array[i] = token;
i++;
}

}

*********** End of Code ******************

Thanks for any help, well im off to bed ive given up till tomorrow