I have been testing a lot of chat platforms and plugins for my website http://kpopway.com and found that iFlychat is the best chat system by far. It is very fast, you can integrate wordpress and buddypress users, you can embed and have it in a bar, also you can paste images to show at the chat, it is CSS editable, and they have a great and personalized support. They are constantly developing things so constantly evolving. I'm very happy. You can try it in my web page, and also listen great kpop music. Thanks a lot to Shashwat for his patience. Totally rcommend it!!! 10 stars!