Chat with moderation
 

I need a chat that has a service of moderation messages. Explain, my forum will conduct an interview with a special guest. In that chat will have the following participants:

Invited;
Moderator;
Members;

And I would like the messages that members send, first to be seen by the moderator and only he released the messages appear in the chat. For that certain prohibited content will not appear in the chat, and also so that it select the most interesting questions.

If someone knows any system, even better if you have some you have integration with vBulletin, but if integration has not so good.

help-me