Can't figure out code on Financial Program?

Hey guys i would first like to say i am new to this board , but i LOVE it!!! Really helps beginners like me out for sure. Ok here goes the problem i am having.... I am designing a financial forcasting program. Basically it contains 5 textboxes. One is for the investment amount, another is how often it will be compounded(i have done a list box containing the choices...weekly;monthly;quarterly;semi-annually;and annually),another textbox contains the interest rate,and another one has the term of investment in years(i have to be able to put in the value in the textbox, or use a sliderbar, which i have never used). The last textbox is contains all the computed amounts. Now the formula i was given to use is B = D(1+i)to the nt power. Now B stands for balance in the account or investment, d stands for deposit, i stands for interest rate, n stands for the number or interest periods(in a year) and t stands for the term or the investment in years. I am really stumped on this one , so if anybody can help me out i would GREATLY appreciate it? Thanks so much everyone, its nice to have help when your just learning the lauguage. Chris H.

P S also if someone helps me, can they please explain how they did it, i am very much still a beginner. Thanks again

First u try to put all what u want in to Equations
Also Figure out what r the inputs & outputs
U have to put a Button to give the command to do the calculation
In the button's click event write the code for calculation

Start with the following simple prog:
Text box 1 -- > Number
Text box 2 -- > Another Number
Text box 3 -- > Multiplication of above 2 numbers

U will find that u have to define variables to hold the numbers & Get the Value of the numbers in the text box etc..

Then u can enhance ur program to do whatever u want. Don't think of the biggest program ahead of u, but break that in to small tasks, do some experiments and proceed. That's how u learn!!
Good Luck
Srinika