I'm having a bit of trouble changing the Dock, can I ask you what you did?
I replaced SBDockBG2.png in /System/Library/CoreServices/Springboard.app and set it's permissions to 0644, but nothing. Any help?
Also, my carrier changing isn't working either, but this time I put it in /System/Library/Carrier Bundles/ATT_US.bundle and replaced Default_Carrier_ATT.png and FSO_Carrier_ATT.png. Do you know what's wrong?
EDIT: Got the carrier logo to work, but I can't get the Dock to work.