Ok, thanks for your tips.
I solved my problem.
I entered a formula, but before I did the next:
I create a new calendar, named "natural", with all days like "working days".
I created two new columns: "starting", with "number1" and "finishing", with "number2".
I defined the next formulas:
For...
Hi. At first, sorry, my english isn´t very gook, I know.
OK, I´m working with "Microsoft project 2002". I need to know START and FINISH date for every task referred to START PROJECT DATE.
When the project begins, it´s "DAY 1", the next day is "DAY 2"...
For example, a task begins at DAY 45, and...