Dude I Believed Not all the system messages can be change the same way. Like when you first log in and get the all black screen saying "Welcome to Eudemon Online" you'll have to find it in the client/ini/StrRes.ini Then you got the other welcome that comes up in the chat when you first log in. That you'll have to change from the cq_action. As for the "ChatTips" that come up in the chat as system messages that's in the client/ini/chattips.ini
hope this will helps you some..