If these are correct, my apologies, I just want to get it out of the way if it is:
Username should be your forum username @chat.cohtitan.com, so on these forums, if your name is Evie, you'd enter "Evie@chat.cohtitan.com" (don't click on the link: the forum software here automatically converts things that look like an email address into a link which won't work.)
The password should be the Titan Network Password you use to log on into the forums (if you use autofill for your passwords on your web browser, make sure you can log in without using it.) If you need to reset it, you can do so at
cohtitan.com/manage.
Very unlikely: XMPP uses Port 5222, so if your firewall or software filter is particularly aggressive in blocking traffic, that could be a port forwarding issue in your network. (Or if you're trying this from work... if your IT Dept actively blocks IM applications, you won't get through.)
