F16 GDM: Howto disable user-list, change background, enable date?

[Patrick Lists]

Hi,

After making some changes to my F15 kickstart file I succeeded in 
installing F16 on my laptop. Unfortunately some things that worked in my 
F15 kickstart file don't work with F16:

How do I disable the user list (aka face browser) in the F16 GDM startup 
screen?

How do I change the background in the F16 GDM startup screen?

How do I show the date in the F16 GDM startup screen

I tried finding the appropriate dconf/gconf voodoo but the Gnome 
developers did an excellent job of hiding the solution :)

Thanks!
Patrick