MyPlayer First & Last Name Commentators & Broadcaster issue

[rh1noceros]

I tried to use Justin or Jason Williams as a name for MyPlayer.
Commentators speak only last name, broadcaster always calls me by nickname.
Why? All this three name are common in NBA.

How can I teach them to speak first and last name of MyPlayer?
And how can I disable nickname for MyPlayer?

[rh1noceros]

and maybe somebody know what means this menu in TurboTrainer 1.2?