B2 and the kid wants to stay

I have one niece which we adopted her just before she came to USA,she is 14 years old, is in US now with B-2 visa. We want her to stay here to go to school (8th grade). How can we switch her visa to extend her stay with legal status.
I have Green card. Please help me and give me a response as soon as possible.Thank you very much
如果B2六個月到期前，我們為他提交I-130,但怎末來算排期？怎樣知道可不可以同時File I-485? 如果不能File I-485，那孩子可以黑在這裏嗎？上大學會不會有問題？

所有跟帖： 

• 回複：B2 and the kid wants to stay -863211- ♂ (850 bytes) () 08/01/2009 postreply 10:00:37

• 回複：回複：B2 and the kid wants to stay -worrytree- ♀ (18 bytes) () 08/01/2009 postreply 11:37:05