Message when player opens the channel

[Dankoo]

When I open the Help Channel I receive this:

11:58 Welcome to the help channel.
In this channel you can ask questions about Tibia. Experienced players will gladly help you to the best of their knowledge.
For detailed information about quests and other game content please take a look at our supported fansites at Tibia - Free Multiplayer Online Role Playing Game - Community
Please remember to write in English here so everybody can understand you.

How do I change this? Already searched all server files, including sources and couldn't find

Also, I would like the player to receive a message when opens Trade channel, this message:

11:20 Here you can advertise all kinds of things. Among others, you can trade Tibia items, advertise ingame events, seek characters for a quest or a hunting group, find members for your guild or look for somebody to help you with something.
It goes without saying that all advertisements must be conform to the Tibia Rules. Keep in mind that it is illegal to advertise trades including premium time, real money or Tibia
characters.

For that I've tried this:

creaturescripts/trademotd.lua

function onJoinChannel(cid, channelId, users)
	if(channelId == 6) then
				doPlayerSendChannelMessage(cid,"Here you can advertise all kinds of things. Among others, you can trade Tibia items, advertise ingame events, seek characters for a quest or a hunting group, find members for your guild or look for somebody to help you with something.It goes without saying that all advertisements must be conform to the Tibia Rules. Keep in mind that it is illegal to advertise trades including premium time, real money or Tibiacharacters.", TALKTYPE_CHANNEL_W, 0)
	end

	return true
end

Registered it in creaturescripts.xml and login.lua, but didn't work

So, how do I change that Help Channel message, and include this message in Trade Channel?

Thanks eace:eace:eace:eace:

 

[SpiderOT]

i guess it is client side

 

[Dankoo]

hadouken!