MyTimeNow and Zee, and the others from Over 'Ome, it's easy peasy to log in to chat. Just click on the link at the top of the page.
This takes you to a screen with a text window. It also has a list of chat subrooms, and a list of the folks currently logged in. Type in the text window and hit enter, and your text then is published to the screen which all logged in to that room can see.
To move to another chat room, for example Secular Discussion Room, simply click on that text, and *whooooosh*, there you go. It's helpful if you and your cohort make a date in advance and communicate it, say through PM. Or a post on this forum would work too, a general invitation to a discussion of our experiences or some such.