Congratulations to both of you!
When I applied for the change of my passport because of my marital status, I was asked to attend the seminar on guidance & counseling for Filipino Spouses and other Partners of Foreign Nationals at PRISM (Peoples Reform Initiative for Social Mobilization) office - in Taft, Manila. After which I was awarded the Certificate of Attendance. Then on the same day, I was directed to go to CFO for the registration and got a green paper certificate (another certificate). But my registration is not yet complete since I don't have my visa yet. I was asked to go back when I have it already for the sticker to be affixed in my passport as proof of registration.
But since your fiance has the visa already, she'll all get this.
Fort the ID. What I presented (at PRISM office) was just a photocopy of my driver's license and my company ID (both have my pictures in it)
Hope that helps. =)
Good Luck to both again.