I’m always blown away by the off-the-wall writing on 30 Rock. ‘How do they come up with all that crazy dialogue?’ I always think. Well, now we know — Tina Fey’s daughter is the mastermind behind it all.
That’s right, according to Jane Krakowski (who plays Jenna Maroney) the show’s crack ghost writer is none other than 3-year-old Alice. Says Krakowski:

Um…. I hate to be a stickler here but its JANE Krakowski that plays Jenna Maroney on 30 Rock. Not Tina.
Just a little FYI….
http://en.wikipedia.org/wiki/Jenna_Maroney
The source you cited has the name correctly though… I’m assuming the typo was because Tina Fey’s daughter was the subject…seriously not trying to be a smart ass but thought it needed to be corrected….:)