When reloading, use the reload button ON the web page instead of the reload button on the browser's tool bar. This will eliminate double posts. If you don't see any new messages, try clearing your disk cache. There should be an option for it in a drop down menu on the browser's tool bar. Create a username kinda like a CB handle.
Real names are acceptable but almost everyone uses a handle instead.
Multiple usernames are a great responsibility. Please use them wisely and ethically. The VolChat script will take care of creating a hyperlink for you. Posting in-line images in messages is allowed but be careful it may just slow the service down for everyone. If you are unsure of how big a file is, try using a link instead.