In tha 'NTPublicBaalGameAnnouncment.ntj' yu will see:
var joinChatAfterLogin = true; // join chat after login
var joinRandomChannel = false; // if this is true, will join a random channel, otherwise it will use the channel below..
var joinChannelInChat = "xXx"; // leave blank not to join a private channel
Change tha 'xXx' to whatever channel yu want to join.
And which announcement are yu talking bout? In channel? or in game?
If in channel, Also in tha 'NTPublicBaalGameAnnouncement.ntj' Yu will find this:
var gameAnnouncement = "Next Game = %game%counter///%password in %time seconds."; // leave blank not to post a channel announcement
var gameAnnouncementDelay = 5000; // wait X milliseconds before posting the announcement message (don't set this too low!)
var gameAnnouncementDelayRandom = 500; // random amount of time to add to a to the announcement delay
That will say (For my games) :
Next Game = ExBaal-xx///323 in xx seconds.
If yur talkin bout in game, open 'NTBaal.ntj'
Press Ctrl+f and type 'Say' and click ok. And yu can change whatever it says in game by doing that.