Question about the tax credit expiring

What if you adopt a US citizen baby in 2010 but dont finalize until 2011 do you still qualify for the tax credit since you can take it in the year it happened? And would you still be able to take it over the 5 years? Also if they don't renew the tax credit will it become $5000 for any adoption or is it just special needs and there won't be any credit for regular adoptions. And can you take that $5000 over 5 years too.