Hello bnhshallow, welcome to UGN Security
Just so that you know, we have covered this topic a few times already. One thing you should do before you ask a question is quickly take a look at some of the older posts to see if you're question has already been answered. I think we've covered net send a few times now, and really, it's not that great a thing. But that notwithstanding, read through this thread: http://www.undergroundnews.com/cgi-bin/ubbcgi/ultimatebb.cgi?ubb=get_topic;f=3;t=000178
That should answer just about everything you want to know. If not, I'm sure there is a few more threads on net send lurking around. It does seem to be a popular topic.