get a download manager like getright, or something else that's free -- which will resume aborted downloads.

I don't think this is a smith micro problem, but a problem with your own ISP - I got speeds of over 700kb/sec -- it took an hour to get everything.

I did have problems with downloads aborting with Firefox 3.5, so I opened up IE8 (which I swore I'd never do), and didn't have problems after that.