Craps, game help!

[Mr.PinkBunny]

I've been studying VC++ for about 2 months, and I was working on my first game from a book (Game Programming All In One)
The game is 'Craps', it's a dice game. Anyways, I've had a few prolems with the codeing, can someone help me? (Windows 32 Console)
Here is the game....

#include <iostream>                                        // Includeing Headers
#include <stdlib.h>                                        
#include <time.h>

using namespace std;                                       // Language
                                                           // Global Variables
void ShowIntroScreen (void), ShowInformation (unsigned long Money); 
short GetBet (void), DoDiceThrow (void);                                 
unsigned short DoMoneyCalc (short Dice, short Bet, short BetMoney);
unsigned long GetAmount (void);

main (void)
    { 
        unsigned long MoneyEarned, Money;                     
	    short DiceValue, Bet, BetMoney;


	    ShowIntroScreen ();
	    Money = 1000;

	    do                                                   // Loop Actions
	        {
		    ShowInformation (Money);                  

	   	    Bet          = GetBet ();
		    BetMoney     = GetAmount ();
		    DiceValue    = DoDiceThrow ();
		    MoneyEarned  = DoMoneyCalc (DiceValue, Bet, BetMoney);

		    Money -= BetMoney;

		        if (MoneyEarned == 0 )
		            {
			        cout << "You have lost.  The number was: " << DiceValue << endl << endl;
                    }
		        else
		            { 
			        cout << "You won " << MoneyEarned - BetMoney;
			        cout << " dollars. Number was: " << DiceValue;
			        cout << endl << endl;

			        Money += MoneyEarned;
		           }
           }
	while (Money > 100);
	    cout << "Game Over. Keep $" << Money << " for the ride home\n";

	    return 0;
}
			
void ShowIntroScreen (void)                                // Rules and Start Up
    {
			cout << "     Welcome to Craps 1.0" << endl << endl;
	    	cout << " Here are the rules:" << endl << endl;
            cout << "You have 1000 dollars to start gambling. ";
			cout << endl << endl;
                
			cout << "There are three types of bets. You can bet on: " << endl << endl;
			cout << "  - 2 and 12 which will give you the ratio of 5 to 1 if you win.\n";
			cout << "  - 4 and 10 which will give you the ratio of 2.5 to 1 if you win.\n";
			cout << "  - 6 and 8 which will give you the ration of 1.5 and 1 if you win.";
			    cout << endl << endl;

			cout << "The minimum amount of money you can bet is 10 dollars and \n" " the highest amount of money you can bet is 100.";
				cout << endl << endl;
            cout << "Have fun playing!";
				cout << endl << endl;

    } 

void ShowInformation (unsigned long Money)                 // Money Display
    {
				cout << "You have : " << Money << " dollars.";
				    cout << endl << endl;
    }

short GetBet (void)                                        // Gets Bet Type
    {
	unsigned short BetType;     


	cout << "Enter a type of bet ( 1 = '6/8',  2 = '4/10',  3 = '2/12': ";
	cin >> BetType;

	if ((BetType == 1) || (BetType == 2) || (BetType == 3))
        {
		    return BetType;
	    }
	else
	    { 
		    return 1;
        }

short DoDiceThrow (void)                                   // Randomized Numbers
    {
	    short DiceValue;
	

	    srand (time (NULL));
	    DiceValue = (rand () % 11) + 2;

	if ((DiceValue == 4 ) || (DiceValue == 10))
	    {
		    srand (time (NULL));
		    DiceValue == (rand () % 12) + 1;
	    }

	if ((DiceValue == 2) || (DiceValue == 12))
	    {
		    srand (time (NULL));
		    DiceValue = (rand () % 12) + 1;
	    
                  if ((DiceValue == 2) || (DiceValue == 12))
	        {
		        srand (time (NULL));
		        DiceValue = (rand () % 12) + 1;
	        }
        }
return DiceValue;
   	}
                                                           // Calculating Data
unsigned short DoMoneyCalc (short Dice, short Bet, short BetMoney) 
{
	   unsigned long MoneyEarned = 0;


	   switch (Bet)
	       case 1:
		       if ((Dice == 6) || (Dice == 8))
			       {
					   MoneyEarned = BetMoney * 1.5;
				   }
				   break; break;
		   case 2:
			   if ((Dice == 10) || (Dice == 4))
			       {
					   MoneyEarned = BetMoney * 2.5;
				   }
				   break; break;
		   case 3:
			   if ((Dice == 3) || (Dice == 12))
			       {
				       MoneyEarned = BetMoney * 5;
			       }
			       break;
			       default;
				   MoneyEarned = 0;
				   break;
       }

   return MoneyEarned;
	}

	unsigned long GetAmount (void)                        
                     {
                           unsigned short BetAmount;
		cout << "Enter amount to bet (min 10 - max 100): ";
                                   cin >> BetAmount;

		if (BetAmount < 10)
		    {
			    BetAmount = 10;
		    }

		if (BetAmount > 100)
		    {
			    BetAmount = 100;
		    }
		
		return BetAmount;
	}

I've had a few problems with this book already, it's about 2 years old or so, it uses an older version of c++ and there has been some
modifications over those few years. ANYWAYS!!! I need help, here are the errors!

c:\Projects\Craps\Craps.cpp(151): error C2065: 'MoneyEarned' : undeclared identifier
c:\Projects\Craps\Craps.cpp(95): error C2601: 'DoDiceThrow' : local function definitions are illegal
c:\Projects\Craps\Craps.cpp(123): error C2601: 'DoMoneyCalc' : local function definitions are illegal
c:\Projects\Craps\Craps.cpp(26): warning C4244: '=' : conversion from 'unsigned long' to 'short', possible loss of data