Users don't show on chat under active users

Hello,
I have just recently installed the chat plugin. On the chat box i have the active users side box enabled. But for some reason no active users show in it that are logged on? also i want guests to be able to use that chat as well and have them appear in the active users side box.

The other issue i have is that in the main chat box when i type a message it doesn't show my name. i want it to show my name so how can i do this please?

Thanks,
Sunny