Need a few answers, if any good soul could help! XD

Is a few questions actually:

1- How can I change the main screen login? (I didn't find it on the Feature Matrix)

2- Where can I change the shop prices, and the cash items prices (and items too) didn't find either.

3- I was seeing that the Client can modify and put 1hitkill when he wants, anyone knows how made the client knows the file when he's encripted? or a way to keep them out the files? (Maybe a db check from the server) xD

Guess is it, thanks :)

solved.