It all depends. Did your daughter have any brain bleeds? If she did there is a bit higher risk for developmental delays, depending on the grade it was...that being said my son was born at 23.4 weeks and had the worst grade of bleed. And had no delays. It all depends.
I think they (the doctors) go by gestational age, being 22 weeks...she may have some delays, but she might not. I wouldn't worry too much, and just enjoy her. As long as she reaches her milestones, it really doesn't matter when in the end, as long as she gets there! I know easier said than done, I had a hard time not worrying myself. But my son is almost two and totally on track.
I think you will have a hard time finding information pertaining to your daughter as 22 weekers are just so rare and amazing!
She will get there!
I hope you will post her story and pictures in the VIP sticky on this board.