Whose mailing address are you supposed to out in the first part? the petitioner's, the sponosor's or the the immgrant? The form is confusing, nothing in the instructions

I am assuming you mean part 2. This section is for primary immigrant (as per the heading) who is the primary beneficiary of that application.

Yes, thank you. We figured we qualify for the I864EZ))) Does it mean it can be processed faster? I also have a question about when the IV bill is available to pay. I 864 is showing paid, but the IV is still greyed out