Elgg internal messages changed to conversation

Hello Everyone,

Please i have been looking at the the conversation plugin by Trajan and i can't seem to understand how he did it. The plugin didn't work for me. I also installed easy talk but still didn't work for me. I also looked at how the internal message plugin was coded but i don't know where to start from. What i wanted to do is turn elgg internal message to a conversation message system like facebook . Please any help is much appreciated.