If the file you're talking about is the "Iron Man Rigged" file (which I've noticed is not in your 4shared folder anymore), I'll freely admit that I was one person who downloaded it. I had no interest in hijacking your work or trying to edit the model myself, because I have no experience with 3d modeling. I was just interested in what the whole model looked like before you and Abgates simplified it. I was unable to open it anyway, because the only program I have capable of opening a 3d file is Pepakura.
I offer a warning, though. You said you set up the download "in private," yet it was on a public file hosting sight where anyone who searched for it could find it. Maybe if you don't want more than the person intended to download it next time, email it to them as an attachment or some other method that does not make it readily avaiable to the public.
Once again, I meant no harm by downloading the file, and I also hope you do not take offense to my above suggestion.