Firstly I should point out I don't have a clue what I'm doing! I've inherited a 1st gen iPad that's been jail broken . It's on version 4.2.1 and I'd like to upgrade it either through cydia or by unjailbreaking it if neccessary to get the latest os as I now can't download or update any apps as the os is so outdated..... However I have hundreds of 'free' books and i dont want to lose them. iTunes obviously doesn't recognise them as they weren't purchased how can I save them on a pc, upgrade ( maybe through iTunes) and then load them back onto the iPad? I'm not technical at all so please bear that in mind. Really hope someone can help