Pretty nice for a first script
I haven't tested it though , cause i'm not a member at the moment.
However, i would like you a little with your script 
While scanning over your script, i've seen this a few times:
SCAR Code:
Mouse(x,y,1,1, True);
wait(500+random(500));
//ChooseOption('Talk');
I'm guessing you wanted to make the script right click the judge, and choose Talk, but it didn't work. This is easily fixed. You need to change the True to a False.
True = Left click
False = Right click
It works then 
You also asked (in the script) if the Username and Password part was really neccesary. Well, it is.
The script uses it to log the player in, but you didn't implent that yet.
I thought i'll help you out a little, so i fixed a few little things, and added some more (Like ActivateClient, to activate RS)
Also antirandoms and antiban should work now.
Good luck!
~Sir