Formatting question

Hello,

I am new to programming and the assignment was to output a list from a mortage calculation that counts down the months of the loan and shows the payment to pricipal, interest and remaining balance. The program works fine, but right now I am seperating my columns using \t. When the numbers in one column change from 5 to 6 digits the columns get messed up. I dont know how to correct? Any advise would be appriciated. I can attach my code if needed

[468 byte] By [docwtsna] at [2007-10-1 2:21:14]