Network Marketing Tree Plugin?

I would like to use elgg for a network marketing company, but I haven't found any plugins that will keep track of who invited who and display it in a tree view. This function is essentially all I need on my elgg site. Has such a plugin been created? and if not, would anyone be interested in creating one? I would do it myself, but I have no programming experience whatsoever.Please respond with any suggestions. Thank you.