I would like to second ems. A BIG thank you for taking time to reading the guidlines and actually trying to know, instead of just dumping requests all over the place. You see we are enough mess with all clutter, so we need everyones help to get it organized and keep it clean. I am sorry if anybody got rude at you, but it's usually b'coz some of us just get fed up after repeating same things a thousand times only to have them repeat the next day.
That said, to answer your question about moving ebooks. Personally I always use my PC to strip DRM. I use IPad, but never attempted to upload books to STP from there. So what I did was instal Nook / Kindle for PC on my machine and download / sync ebooks from Nook / Kindle. That way you get a copy of the book on your PC. Also you need calibre to strip DRM off. After that use following link for more helpful instructions and software / plug ins needed. Don't be intimidated, it might look intimidating but once you are set up all you have to do is add the book to Calibre and you are DRM free. Hope this helps. Don't hesitate to ask questions, if you run into any trouble setting this up.
Thanks once again for taking time to actually reading the guidlines we work to establish.