N400 or N600

[arrangingvisa]

My daughter was under 18 when I applied for citizenship, however she has crossed 18 before my interview (to be held in Apri '08). For her should I go ahaead and apply using N400, or can I still apply for N600 based on her age when I filed for N400.

Thanks for your help.

[Anuwasti]

I am also in a similar situation. Did you gey any clarification about N400 or N600. Please let me know.