I am not too sure if I am actually using the jailbreak stuff. I install it according to your recommendation on the other thread when I mentioned I wanted to access the file system of the iPad. Now it sounds more like Jailbreak is not what I need.
Your suggestion of adding "books" to iBooks seems to conflict with what you said on the other thread. So as you advised on the other thread I would follow the suggestion on the other one.
I have not got to use the email functions on the iPad yet. I wonder if it allows to create more than one profile like Microsoft Outlook.