C++ school assignment

I need some help on this program I am working on :

"Create a program that will prompt the user to enter a monthly interest rate, the amount of a monthly deposit and a target value. Then starting with a zero balance, calculate the number of years and months needed to reach the target with monthly compounding. An Example output follows: (red text indicates user input)
*** Financial Planner ***

Please enter the monthly interest rate: 2.5

Please enter the monthly deposit amount: $50

Please enter the target value: $50000

Your balance will be $50019.10 after 10 years and 11 months.

Notes:

The interest rate will have to be adjusted for calculations.
Initial balance = 0, after first month add $50 then add 2.5% of the account balance to obtain first month-end balance. Second month, add the month’s $50 deposit and add 2.5% of the account balance to obtain second month-end balance. Continue until target value is reached."

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I am pretty new to c++ and here is what i have started:

#include <iostream.h>

int main()
{

// variables
float interest;
float deposit;
float target;
float balance;

cout << "Please enter the monthly interest rate:\n";
cin >> interest;
cout << "Pease enter the amount of a monthly deposit:\n";
cin >> deposit;
cout << "Please enter the target value:\n";
cin >> target;

balance=0;
while (balance <= target);

while (balance += (balance * interest));

while (balance += deposit);


{
cout <<"Your balance will be "
<<balance << " after ";

}

return 0;
}

What is the problem exactly? Can you be more specific? Please don't ask for you assignments to be done here.

Well I'm only a student as well and I'm not even in my major classes yet but I have read two books on C++ programming. That doesn't mean I know anything though. If your getting a syntax error when you try to compile this, its probably because your putting a .h behind #include <iostream> = I use Visual Studio 2005 beta, Im not sure what your using but when I put the .h behind i get a cannot open error!!!
Let me know if this helps you out!!!

In addition to dropping .h in #include <iostream.h> you also have to use
using namespace std;

e.g.


If you are wondering why we have to drop .h, well, .h file was the old header, and the one wihtout .h is the latest header file.

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Programming (Assignment/Project) Help

hello you ! i am beginer in C++ .Code is :
#include<iostream.h>

float Monthly(float interest_rate,float monthy_deposit,float target_value);

int main()
{
cout<<"month is :"<<Monthly(0.25,50,50000);
return 0;
}
float Monthly(float interest_rate,float monthy_deposit,float target_value)
{
float month=int ();//hoac int month =int ()
while (monthy_deposit<target_value)
{
monthy_deposit=(monthy_deposit)+(interest_rate*mon thy_deposit);
month++;
}
return month;
}