hi maisflocon, you can start by reading this link from NVC, http://travel.state.gov/visa/immigrants/info/info_1335.html, it list all the documents you need to submit to NVC. 1 - yes 2 - submit DS-230 part 1 and 2 3 - yes 4 - i did not submit my birth certificate for petitioner 5 - yes 6 - yes 7 - copy of passport biographic for her 8 - i did not submit my naturalization certificate 9 - yes and i submit 2009, 2008, 2007 i mailed the original birth certifcate and marriage certifcate to NVC and my wife recieved the above original documents back after the interview in GZ. tax transcripts from IRS is ok but i mailed my 2009, 2008 and 2007 tax returns. you can read my time line for reference, good luck.