Geting hulu.com to work in aTV

I downloaded the latest version of Adobe Flash, but when I use Couch Surfer or Firefox to watch hulu.com content, it appears that the flash version is wrong because all I can see is a little box with a question mark?

Does hulu.com content work on either Couch Surferor Firefox? Is there something special that has to be done? I can access hulu.com with my PS3 browser or using PLAYON with PS3, but I am trying to access hulu.com from aTV.