Originally Posted by RukusRazor
I strongly suggest everyone do this using a computer and not try to do this from your droid.
As far as I've read, Astro won't allow you to move the file to your root SD card directory. I'd find the "from your phone" tutorial on page one of this thread and follow it very closely.
I was able to do this easily with EStrongs File Explorer also Free and they have a good task manager with handy widget as well. Highly recommend