Shep, try dropbox. Its what i generally use, even tho i pay for hosting =D
As far as your problem, i would add a couple more loops to define the curve around the hard edge, just to give it better structure(round them out too of course, not straight like i have them here) and then Gradually taper those edges out to more of a centered position, to somewhere you feel you can end the loop without getting artifacts, or simply carry the loop around back.
You can see what i mean about "smoothing out" the edges going away from the hard edge in this example pretty well:
Also as a general note, i think you're making your hard edges too hard overall. I think it would translate to a NM a bit better with a little more softness in the edges. Esp considering how small the object really is, but that is something that we'll cover with a more in depth workshop.