DNN 7 chat module issue

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C#

C#4.0

dotnet-nuke

Hi,
I'm developing an internal portal using DNN7. As, i like to add a chat module in my portal. But when i tried to find a module for installation in google i found this url http://dnnchat.codeplex.com/[^] when i installed this module in my portal it is not working if im having more than 3 users and the UI view of the chat is not so attractive and everyone can view each other chats in the window where there is no privicy to each. so can any one say is there any possibility of getting a chat module for free or solving this particular issue.