You want to use your current mailing address for your personal address- it should be somewhere the IRS would be able to send any mail to you. FPO and APO are military addresses- if you were on a military base when you worked, it would be the address your employer had on file (which may or may not be your current address).
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"