Hi,
T TK XFRD - Trim tank tranfered (as other people say from the tank in the stablizer to the right and left wing tanks). All the fuel has been transfered.
The green N/WS DISC on the upper ECAM memo is saying that ground personnel has put in the bypass pin in to the nosewheel. So I think the push back car is connected to the nosegear. During this time your input to nosewheel steering will take no affect.
Terr On Nd - Correctly stated by other people.
No ATC is correct.
Antiskid off switch is used when normal braking is unavailable. So when you put antiskid off you will be applying brakes by the emergency system. You can see the indication of this system right side of the landing gear lever.
Best Rgds,
Guclu