questions about chat system implementation

Hi,

I’m setting up chat plugin and had a few questions. The chat is located here:

http://promotedparent.org/chat/

The client wants the public to be able ot chat with her monday-saturday 9-5. Is this an option in the system? I have public users checked in permissions but it’s not showing any active users when you visit the page. I don’t want them to have to be forced to login to chat. Does the chat system support uploading files? Does it support embedding youtube and other videos from other online sites?

Corn