All I did to get your code working is specified an absolute path to the file

Code:
#include "iostream"
#include "string"
#include "fstream"


using namespace std;

void GetData(string& Infix, string& Pre)
{

  ifstream ins("c:\\data.txt");
 
  
  int Count = 0; // Counter used to update position in array where we are saving the floppies contents to.
  
  string data;
  string FloppyData[2];
  
  while(!ins.eof()){
    getline(ins,data);
    FloppyData[Count] = data;
    Count++;
  }
  
  Infix = FloppyData[0];
  Pre = FloppyData[1];
  
}


int main()
{
	string i,p;

	GetData(i,p);

	cout << i << endl;
	cout << p;

	system("Pause");

	return 0;

}