Tax payments can be made by
having federal income tax withheld from wages and/or making quarterly estimated
tax payments on your own. This is what
question 6 is asking.
If you had federal income tax withheld from your
wages (this would be reported in Box 2 on your Form(s) W-2, you would answer
"Yes" on question 6 and
skip questions 7, 8, and 9 on the Form 8379 and begin filling out Part II.