How to fill out W-4

[PinkMelody 1]

My husband just brought W-4 for 2012 yesterday and we were trying to figure out how to fill it up. I have some questions, please help me.

On the checking box, can he just check he's married? at the bottom it says if married, nut legally separated, or spouse is a nonresident alien, check the 'single' box. Since we haven't had our interview yet, would it safe to just check 'married' box?

It says Enter '1' if you(my husband) are married, have only one job and your spouse(me) does not work, so we put '1' Later when I get a job do we need to delete this '1'? rewriet the form?

and the next one says, Enter '1' for your spouse. But you may choose to enter '0' if you are married and have either a working spouse or more than one job. (Entering '0' may help you avoid having too little tax withheld) We don't know what to put. Last year, we filed jointly for the first time and he owed money to IRS since he withheld the minmum amount of tax so we were thiking to put '0' to avoid having too little tax withheld. But than would it cause any conflict with the first question about putting '1' for having not working spouse?

On the second page, Does he also need to fill out 'Deductions and Adjustments Worksheet' and 'Two-Earners/Multiple Jobs Worksheet'?

When I came here on J-1 long time ago, I don't remember filling out the 2nd page.

Please help me out here.

Thanks in advance.

Edited February 28, 2012 by PinkMelody