Is it possible to copy the files from one drive to another or is the old drive too unstable?

I agree with Paul. It's at least worth a try doing your uploads in small batches. Also, 2.00 is not only more stable, but more people have experience with it. So, if the problem still occurs in 2.00, more of us can help you (though, I suppose the people that tend to be most helpful already have 3.00 installed! )