Cybils Folks, Please Help

I nominated Atinuke's No. 1 Car Spotter which recently was published in the U. S. by Kane/Miller.  Now I see the following on the Cybils site:

 

No. 1 Car Spotter

By Atinuke Atinuke

Status: Pending Approval

Reason ineligible: Publication date prior to Awards Cycle (September 2010)

Nominated by: Monica Edinger

I'm confused because the above is a link to the U.K. edition which did indeed publish in 2010.  But the U.S. edition published within the Awards Cycle and I can't see anything in the rules ...